I only use the ones I make. I use home dec fabric. I check the red tag tables at JoAnns or wait for a sale or use coupons. I have a Simplicity bag pattern or use an old McCalls craft book. There are tons of patterns on line. I also make my own produce bags. The most expensive part of the project is the webbing for the handles. I bought a huge wheel of it on line so that helps or sometimes I just use leftover fabric strips. Good luck and and Yay town for going plastic free!