I only purchase fabric for up to 3 projects I have in mind. I have 3 storage bins (1) for each project and when I get a coupon, I decide ahead of time which project I am going to buy for. This way, when everything is purchased, hopefully, I am done with my current project and can start that one which frees up the bin to start purchasing for another project. In addition, I start a "supply sheet" for each project and take a little 1 x 1 square and glue it to the sheet. This way, when I go to the store, I take that sheet with me so I can match it up. :)