I bet I’ve been asked about 65,000 times in the last few years–”How can you possibly crochet with a grocery bag?” Consequently, this story has been told quite a bit, but never here on the blog. So, for those of you who’d like to know—this is how you do it. Take one innocent looking grocery–the thin, noisy kind–and smooth it out flat. Fold it in half lengthwise and smooth out again. Knitting Supplies & Knitting Patterns from Noble Knits. Knitting Supplies. Marnie MacLean Designs.