Packing hack for anyone constantly travelling

I've lived out of a 40L backpack for 6 months - here's my packing list

No checked luggage. Just a carry-on backpack. Here's what I bring:

Clothes (7 days max):

• 3 t-shirts

• 2 long sleeves

• 1 hoodie

• 2 pants (1 jeans, 1 quick-dry)

• 1 shorts

• 7 underwear + 7 socks

• 1 swimsuit

• 1 pair shoes (wear) + 1 flip-flops (pack)

Tech:

• Laptop + charger

• Phone + charger

• Universal adapter

• Power bank

• Earbuds

Toiletries:

• Travel-size everything (buy full-size locally)

• Microfiber towel (dries fast, takes no space)

Misc:

• First aid kit (band-aids, pain meds, anti-diarrhea pills)

• Reusable water bottle

• Portable clothesline (for hand-washing)

• Photocopy of passport (separate from actual passport)

Pro tip: Roll clothes instead of folding = more space. Compression cubes = game changer.