I think I am an ultra-light traveller (only ever go with hand-baggage 30l backpack, less than 7kg, including 5-6 week trips) I travel for at least 3 months a year (not all in one trip) and I completely get your post (although I realise it was more asking for back pack recommendations). There are joys of travelling light, and downsides. The great things are: never being separated from your stuff, no overhead cabin baggage dilemma, hoisting your ridiculously light back pack off a flight and walking straight out of an airport, not having to ever store your baggage anywhere if you have weird flight times, it is a lot cheaper too, no baggage fees. You never lose things, there isn't much to lose. I also put a bit of work in and get places with a washing machine, and then use Green Sheets (weightless sheets that do a full wash), and sometimes hotels I know have toiletries already (most do) and then decant my "must haves" foundation, face-cream etc. into tiny travel pots from Temu, travel toothpaste etc..deodorant is a nuisance, esp if you like spray, if you are OK with stick or roll on then you are grand I only ever take deet roll on (jungle formula max strength) and long sleeves, the spray just goes all over and chokes you. The downsides are: Shoes, you get the trainers you are wearing (and they have to be absolutely right and comfy), if you are lucky, you can fit something else in, because wearing the same thing day and night is tiresome. Underwear & Socks, you have to wash them through if you are going for a long time - takes 5 minutes, and they dry overnight, but it isn't anybody's dream activity, and takes a bit of discipline. If you like to look different every day / fashionable / or are high maintenance on the hair and make up front, this is not for you, although if you choose well on clothing (light, wrinkle free) you can do OK. Tech is heavy, I go with my phone and kindle (lighter than books, easier if you have a sleeping person in your room), and over the ears noise cancelling headphones, but I do miss better tech. I take lightest adapter, and lightest power bank and double cables. Double cheap reading glasses (always manage to lose a pair somewhere along the way). Light fleece or jacket. I rarely take a towel, hotels have them 99% of the time, . I usually take a headscarf /neckscarf thing, not only to cover head in religious sites, also it is quite comforting on long flights I realise this is a long post, but hopefully it will help those who would like to travel light. xx