I will usually buy 1-2 yds of 4-6 coordinates at the same time so u know you will have plenty for most projects. Usually on sale. Most quilts, even big ones K/Q, you can make out of this amount. Recently however, our little Wal Mart is moving into a new Super Center and I got some very nice ( reg $6 yd) fabric for $1 yd. That trip I bought 51 yds and went back the day after and got another 30, mostly in the 1-3 yd range. (I couldn't pass that up.) Buy what appeals to you and and b4 you know it you will have enough fabric to open your own store, lol.