Look what I made...
Isn't she pretty? She's lined and everything!
I found the pattern on Ravelry. It's called Inga'a Haekelbeutel and you can ravel it here.
I followed the pattern with the following changes, the squares are a little different (square target from 200 crochet blocks), I only did 3 rounds of squares instead of 4 (and it's plenty big!) and I improvised the handles. It's perfect :) I want to make more!