I've been building my stash by overbuying the fabric I need for a specific pattern. Usually by a half a yard or so. Then of course if I'm in a shop or online and just have to have something, get it. Depending on my mood, I'll buy either a yard or only half. It's rare for me to buy any larger than that unless I have a specific project.

Of course there are all the precuts I've started amassing. I like these since I'm bad at color choices and it's one less thing to think about when making a quilt.