Baggage claim has a special talent for wasting your first hour of vacation. Add lost luggage, surprise fees, and the stress of wondering if your suitcase made the connection, and it’s easy to see why carry-on only travel feels like freedom.

The good news is you don’t need to be a minimalist to do it. You just need a repeatable system that works for a long weekend in Nashville, a quick run to Las Vegas, theme-park days in Orlando, or a beach week in Puerto Rico or Mexico.

This guide walks you through one carry-on plus one personal item, with laundry as the safety net for longer trips. Pack for seven days, wash once, and stop hauling your closet through the airport.

Start with the rules, so your bag never gets gate-checked

Most major U.S. airlines still treat a “standard” carry-on as about 22 x 14 x 9 inches, including wheels and handles. That’s the common target for overhead-bin bags on airlines like American, Delta, United, JetBlue, and Alaska. Southwest often allows a slightly larger carry-on, while budget airlines and some basic economy fares can be much stricter.

What’s different in 2026 is enforcement. More airports and airlines are using automated bag sizers and stricter gate checks, so the old trick of “it’ll squish” is less reliable. If your bag is bulging, it’s more likely to get flagged, and gate-check fees can sting.

Before you commit to a bag for a specific trip, do two quick checks:

1. Look up your fare rules for that exact flight, not just the airline in general. Some basic economy tickets allow only a personal item, or they charge for an overhead carry-on.
2. Measure your bag when it’s fully packed, not empty. Wheels, handles, and overstuffed front pockets all count.

If you want a quick reference for different airlines, keep this bookmarked: carry-on bag sizes by airline. It’s the easiest way to avoid packing for a 22-inch bag and showing up with a 24-inch problem.

Carry-on vs personal item: what goes where for fast security and easy boarding

Think of your carry-on as your closet, and your personal item as your “I need this today” kit.

Your overhead carry-on is for: clothes, shoes, and anything you won’t need until you arrive. Your personal item (small backpack, tote, or laptop bag) is for: meds, documents, chargers, headphones, a light layer, and snacks. If you get separated from your carry-on during boarding, you’ll still have what matters.

Liquids are where people get tripped up, especially on beach trips where sunscreen is non-negotiable. In the U.S., the basic rule is still the familiar one: 3.4 oz (100 ml) or less per container, packed in one quart-size clear bag. The simplest way to make liquids a non-issue is to switch as much as you can to solids (shampoo bars, soap bars, stick deodorant), then keep liquids tight and minimal.

The simple packing system that works for almost any itinerary

Packing light isn’t about owning special gear. It’s about making fewer decisions. The system below works whether you’re headed to a concert weekend, an all-inclusive, or a work trip that needs one nicer outfit.

Start with three steps:

Pick a base color (black, navy, tan, or olive) so everything matches.
Build outfits from the actual itinerary (not your fantasy itinerary).
Cut “just in case” items, then let laundry cover the gap.

A simple capsule target that fits most trips looks like this:

Pack for seven days even if your trip is longer. If you’re going to Puerto Rico for 10 nights or staying at a resort in Mexico for a week plus, plan one mid-trip wash.

Packing cubes help because they stop the “bag explosion” when you’re looking for one shirt. Rolling clothes can save space, and compression bags can help with bulky items, but they can also make you pack more than you need. The real win is wearing your bulkiest items on travel day, like sneakers and a light jacket.

Choose fabrics and layers that travel well (and do not stink fast)

Fabric choice is the hidden skill behind re-wearing outfits without feeling gross. Favor quick-dry, wrinkle-resistant basics that can handle a sink wash and still look fine the next day.

Two easy rules:

• If it takes forever to dry at home, it’ll take forever to dry in a hotel room.
• If it wrinkles when you look at it, it’ll live at the bottom of your bag.

Merino and performance blends can be great for re-wears because they tend to hold less odor than heavy cotton. You don’t need a full merino wardrobe, just one or two pieces you can rotate (a tee or a light long-sleeve).

Also pack for cold air-conditioning. Planes are chilly, and places like Las Vegas casinos can feel like a freezer after the desert heat. A light layer makes you more comfortable and keeps you from buying an overpriced hoodie you’ll never wear again.

Finally, bring one rain option. Orlando storms pop up fast, and beach trips can get surprise showers. A packable rain jacket or a simple poncho keeps your shoes and day plans from getting wrecked.

Toiletries and tech that stay small but cover real needs in 2026

Toiletries get heavy fast, and they’re the most common source of leaks. Keep it tight: refillable 3.4 oz bottles, a few solids, and only what you’ll use daily.

A practical approach:

• Refillables for essentials (face wash, sunscreen, one hair product).
• Solid shampoo or soap when possible.
• A tiny first-aid kit (pain relief, blister care, a couple bandages).
• A simplified makeup routine with multi-use products.

For a deeper dive on what actually behaves in a bag, use this guide to TSA-approved toiletry sizes for carry-ons, especially if you’ve ever opened your suitcase to the smell of shampoo.

Tech in 2026 is easier if you keep everything USB-C-friendly. Bring one compact wall charger, a small power bank (around 10,000 mAh), and earbuds. Skip heavy extras like a full-size hair tool, hardback books, and “backup” gadgets. Use ebooks, streaming downloads, and hotel hair dryers when you can.

For connectivity, an eSIM plan is often the simplest option for trips outside the mainland U.S. Puerto Rico uses U.S. networks, but coverage can vary by carrier, and Mexico trips often benefit from an eSIM so you’re not hunting for SIM cards after landing. If you want general packing inspiration, these carry-on packing tips are a helpful reference for keeping your bag organized without overthinking it.

Pack by trip type: beach, city, and resort stays without overpacking

Once you have your core capsule, you only need to swap a few items based on the trip. The mistake is starting from scratch each time and adding “special” outfits until your carry-on won’t close.

In terms of weekend U.S. trips (Nashville, Vegas, quick hops to see friends), your capsule can stay almost identical. For Puerto Rico and Mexico, you trade a couple tops for swimwear and sun gear. For Orlando, you trade “cute” outfits for comfort, plus weather protection.

Across all trip types, two patterns cause most overpacking:

• Too many shoes (shoes eat space and weight fast).
• Too many single-purpose outfits you can’t re-wear.

If you need more reassurance that one bag can cover a full week, this step-by-step rundown on packing one carry-on for seven days helps set expectations.

Beach vacations (Puerto Rico and Mexico): quick-dry basics, sun gear, and fewer shoes

Beach packing gets easier when you accept one truth: you’ll live in a small rotation. Plan for heat, humidity, and wet items.

A small set that works:

• 1 to 2 swimsuits
• A cover-up or sarong that can double as a wrap
• Sandals or flip-flops, plus one walking shoe if you’ll explore
• Hat and sunglasses
• Reef-safe sunscreen in travel size
• One light evening layer for breezy dinners

Bring a simple way to handle wet items. A thin pouch or zip bag keeps damp swimwear from soaking the rest of your clothes. Skip heavy denim unless you love being hot and uncomfortable. Quick-dry shorts and light pants are easier to wear and easier to wash.

If you like comparing beach-specific carry-on lists, this carry-on beach vacation packing list can spark ideas, just keep your own capsule limits in place.

City trips (Nashville and Las Vegas): outfits that go from walking to dinner

City trips are where people pack “options” and end up wearing the same two outfits anyway. Build around comfortable walking clothes, then add one upgrade piece.

For Nashville, think daytime walking, music venues, and casual dinners. For Las Vegas, expect a lot of indoor cold air plus nightlife. Either way, aim for:

• One truly comfortable walking shoe (your feet will thank you)
• One dressier option (a nicer top, a simple dress, or a packable blazer)
• A small crossbody bag for daily carry

Avoid bulky jewelry and accessories that tangle or need special storage. Use one or two pieces that make you feel put together, then repeat your base items. If you can’t wear it with at least two bottoms you packed, it doesn’t make the cut.

Resort and theme-park days (Orlando): comfort, weather swings, and laundry-friendly clothes

Orlando is a special kind of packing trap because the days are long, the weather changes fast, and comfort matters more than photos.

Choose clothes you can sweat in, wash, and wear again:

• Moisture-wicking tops
• Shorts plus one pair of pants for evenings or cooler days
• A poncho or packable rain jacket
• One swimsuit (hotel pool days happen)

Don’t skip the unglamorous comfort items. Blister prevention and good socks can save your trip. A refillable water bottle also helps, and it keeps you from buying plastic bottles all day.

If you’re traveling with kids, the same rules apply, just faster. Pack fewer outfits and plan one laundry session instead of packing for every possible mess.

Make carry-on only travel easier by choosing the right place to stay

Your packing plan gets much easier when your accommodations support it. A standard hotel room can work, but condo-style resorts and suites often make carry-on only travel feel simple because you have more space, storage, and sometimes a washer and dryer.

Laundry changes the math. If you know you can wash mid-trip, you can pack half as many shirts, fewer kid outfits, and fewer “backup” items. A kitchen also reduces the urge to pack bulky snacks, breakfast foods, and extras “just in case.” Even a small fridge can help you keep things simple.

There’s also a budget angle. When you book condo-style stays at wholesale rates, you can often stretch your travel dollars without stretching your suitcase- that’s why at Plymouth Rock Travel Partners, our travelers get the best of the best without emptying their wallet. Less money spent on oversized baggage fees and last-minute airport purchases means more room for the parts of the trip you’ll remember.

A quick checklist for booking a pack-light-friendly stay

Use this short list before you book:

• In-unit or on-site laundry (and confirm the cost if it’s coin-op)
• Closet and drawer space so your bag isn’t your dresser
• A place to hang items to dry (a balcony or a bathroom with ventilation helps)
• A mini kitchen for simple breakfasts and snacks
• Close to your main activities, so you don’t need multiple shoe types

If laundry is available but detergent isn’t, plan to bring a small pack of detergent sheets or buy a small amount on arrival.

Conclusion

Carry-on only travel comes down to a few decisions you make before you zip the bag: know the size rules, use a simple capsule formula, pack to your real itinerary, and pick stays that support laundry and storage. Test-pack a week early, then pull out two items you don’t truly need. Commit to one carry-on plus one personal item on your next trip, and enjoy walking past baggage claim like you’ve cracked a secret code.

To get more tips, tricks, and inspiration- or even browse and book your next vacation, Plymouth Rock Travel Partners is here for you every step of the way.