Yes on the Libraries! Libraries are often incredibly cheap for printing, and most of them have an online uploading tool so you can print things from your home computer or phone without any hassle. Plus, at least at the library I work at, we have incredibly high quality printers and your docs / photos will come out a lot better than how they would if you were at home, as well as a scanner that can give you a 600dpi TIFF file
Just please try not to hand us a twenty for something that costs 1/100th of that - we often don’t have enough small bills to make change. (Or do and put it on your account for later, if that’s an offered option, or better yet donate the remainder 😉)