Another suggestion is actually behind the thrift store they often throw stuff out if it doesn't sell, so I go in the store in the daytime, and behind it at night
Sad. I have a hard time believing that thrift stores really want to help rather make a profit, when they throw out useable stuff and don't give homeless people free backpacks (Believe me, I have been there.)
22. The library often has shelves of free books and people often put magazines and ads on there. Also, they have big sales where books, magazines, and such are really cheap. If you go on the last day, they are usually a lot cheaper.
23. Ask your family and friends for old sheets for sewing. They are good to practice on or for embellishments. Also, you can make yarn out of them by cutting into strips. There is a good tutorial somewhere on this site.
24. Look around in nature. Grass and flowers are good for paper crafts. Cottonwood cannot be used to make yarn But there are millions of cool rocks waiting to be turned into something. And long grasses and supple sticks are good for weaving. There are also lots of bones to find if you are morally okay with it. And tons of other stuff I can't think of right now.