Just cut plastic grocery bags into loops, then loop together like you would rubber bands and crochet! Note: don't try to loop several loops together all at once, it doesn't work too well-- just add on as you go. This was a lot of fun to make, and I've gotten quite a few compliments :) I don't carry anything real heavy in this bag, but if I did and the shoulder straps were to ever stretch or break, they'd be easy to replace.
