Why I chose to only bring a backpack
You won’t need as much gear as you think you do. Especially when it comes to clothes. Even as a female, I will say, when you start to pack all the shit from your closet, it’s just going to sit balled up in your bag.
Migrating from place to place is easier with a lighter load. Sometimes you get caught in the rain. You could have to walk uphill or through sand on the beach. Whatever it is, rolling a huge suitcase will make your life a lot harder than it has to be, which is why I am a fan of the backpack.
So this is the one I use. It was very affordable and reliable. 65l is more than enough space and it comes with a rain cover which is a must (believe me) . The cushions make it comfortable on your back and you can adjust it according to your hight and what feels best for you. The waist strap comes with most bags but I usually don’t use it, some people do though. It has tons of pockets so you can reach the small things you have without having to dig around. And lastly, when you pull all the straps on the front and make them a bit tighter, it shrinks the bag down, making it fit really well into the overhead compartment of the plane.
(I once thought it was a good idea to check my shit. When I had a layover and had to switch flights, my bag never switched with me. I went without luggage for 3 days and finally getting it back was a pain in the ass. Needless to say, I now always carry my stuff with me.)
It’s easier to pack when the temperatures of your destinations are all within a close range. This will help you not have to take up more space carrying bathing suits and jackets at the same time.
Laundry. There are indeed places all over to wash clothes. Hostels often times offer laundry services for a few bucks or you can go to a laundromat. Do everyone around you a favor, take advantage of the washing machines.
Getting what you need is not hard. Every place I’ve been to so far has had easy to get to convenient stores. So when you do run out of toiletries and shit, have no fear.
I usually make a list of things I want to bring, and then I cross stuff off as I go because I know I can do without. Everyone has different needs so there is no “one size fits all” but this is just the method behind my own madness.