How to Pack Light: The Carry-On Only System

Never check a bag again. Professional packers reveal the techniques that let them travel for weeks with just a carry-on.

How to Pack Light: The Carry-On Only System

I’ve been traveling carry-on only for eight years. I’ve spent weeks in Europe with nothing but a forty-liter backpack. I’ve taken business trips with a single personal item.

The reason isn’t minimalism for its own sake. It’s practical: no lost luggage, no waiting at baggage claim, no checked bag fees. Just get off the plane and go.

Anyone can learn to pack this light. It just takes a different approach.

The Philosophy: Less Is Actually Less

The biggest barrier to light packing is fear. What if I need it? What if it’s cold? What if something goes wrong?

Here’s what actually happens when you pack light: you buy things when you need them. A cold destination means buying a sweater—you were going to buy one anyway. You spill coffee on a shirt, you buy another.

The money you save on baggage fees more than covers occasional purchases. And you gain something harder to quantify: freedom. Walking through an airport unencumbered changes travel entirely.

The System That Works

Choose the Right Bag

For carry-on only, your bag choice matters. Look for:

  • Soft-sided backpack or roller (fits in more overhead bins)
  • 40-45 liter capacity for longer trips, 25-30 for short ones
  • Well-designed straps if backpack
  • Easy access to main compartment

Test any bag you’re considering by packing it fully and walking around. If it’s uncomfortable empty, it won’t get better loaded.

The Capsule Wardrobe Approach

Stop thinking in terms of “outfits.” Think in terms of interchangeable pieces that mix and match.

Pick a base color that coordinates with everything: navy, black, or gray. Add two accent colors. Every piece you pack should go with at least three other pieces.

Here’s a sample one-week capsule for warm weather:

  • 3 tops (mix and match)
  • 2 bottoms
  • 1 dress or nice outfit
  • 1 light jacket or cardigan
  • 1 swimsuit (if applicable)
  • Underwear and socks for each day plus one extra

That sounds minimal, but it’s enough. You do laundry during longer trips—hotel sinks take ten minutes.

The Rolling Technique

Forget folding. Roll everything.

Rolling saves space and reduces wrinkles. Folded clothes create creases that require ironing. Rolled clothes come out ready to wear.

The exception: stiff items like button-downs benefit from folding, then rolling loosely. Experiment to see what works.

Packing Cubes: Worth the Hype

Packing cubes compress clothes and keep categories separate. One cube for tops, one for bottoms, one for underwear and socks.

The real benefit isn’t space—it’s organization. You can pull out the “underwear cube” without unpacking everything. At the hotel, transfer cubes to drawer. No unpacking required.

What to Actually Bring

Clothing Basics

  • Underwear: one pair per day plus wash cycle backup
  • Socks: one pair per two days
  • T-shirts: breathable fabrics that dry overnight
  • Pants/shorts: quick-dry materials
  • Light layers: for planes (cold) and evenings

Toiletries (The 3-1-1 Reality)

You know the rule: 3.4-ounce bottles, one quart bag, one per person. But you don’t need full bottles of everything.

Buy toiletries at your destination if needed. The exception: products you can’t find locally or that are specific to your skin. Pack those in small containers—just enough for your trip.

The Personal Item Tetris

Your carry-on goes in the overhead. Your personal item goes under the seat. Maximize both:

Personal item essentials:

  • Laptop and charger
  • Entertainment (book, headphones)
  • Medications
  • valuables
  • One change of clothes (in case of lost luggage)

Pack these efficiently. A laptop bag with dedicated laptop compartment saves space. A small crossbody bag for daily sightseeing holds essentials.

The Anti-Packer Mindset

Pack Your First Outfit

Whatever you pack, wear your bulkiest items on the plane. Heavy shoes, big jacket, extra layer—these don’t take bag space if you’re wearing them.

This single tactic can cut your bag weight by several pounds.

The One-In-One-Out Rule

For longer trips: for every item you buy or receive, something comes home in your luggage. This prevents accumulation.

Accept Imperfection

You won’t pack perfectly on the first try. That’s fine. Note what you didn’t use, what you wished you had, and adjust next time.

After five trips, you’ll have your system dialed in. It’s not about perfection—it’s about iteration.

Common Objections (And Solutions)

“But I need options!”

You don’t need options. You need solutions. Three tops can create more outfit combinations than you think. The constraint forces creativity.

”What about cold weather?”

Layers. A thermal base, fleece mid-layer, and waterproof shell weigh less than one thick sweater and keep you warmer. Buy a cheap sweater at your destination if truly needed.

”My wife/kids need more stuff”

Start with yourself. Prove the system works. Then help others optimize. Kids adapt faster than adults—and often enjoy the adventure of packing light.


Pack light not because less is noble, but because less is easier. Less to carry, less to lose, less to worry about. Try one trip with just a carry-on and see how it changes your travel.