I have a hard time deciding which ones to use also. I think I only need 30 12" squares for my daybed cover, and have at least 15 or 20 made. Soon I'm going to have to lay them all out so I can decide if I should change any colors, or need to add more of one kind of block. At least I'm not in a big hurry to finish this since you have so many blocks you still want to do. You are keeping me busy girl!!!!