If I like it, I get one yard. If I love it, 2 yards. If I really love it, 3 yards. Lately, seems like love it and really love it have been winning out. Pre cuts, 2.5 inch strips if roll has 40 strips I buy one. Less than 40 strips I buy 2. Charms I buy three. I haven't bought any layer cakes yet, but I think one would be enough.