I always round up required yardage amounts, 1/2yd means I purchase 1 yd, 1 3/8 means I purchase 2 yds, etc.. I also always check the sale racks, and the scrap bins. I really have not added to my stash the past year, first I made the decision because I ran out of room and then a few later I lost my job. That stash sure has come in handy since!!! Once I am working again I told my husband I will need to replenish:)