A couple of months ago I bought some Walmart charm packs. The colors were so bright, perfect I thought for maybe a donation kid quilt, plus 100 squares per pack! Well, I just started using them and I am not pleased. Not one of them is square. Some of the fabrics, the more solid ones, seem okay. Others feel more like window screen! In order to get a square charm I'm having to cut all of them down to 4 1/2 inches. Luckily, I have a ruler that makes it pretty simple. Will see how they work from there, but I think I've learned my lesson!