A stash is not something that happens over night. I don't think anyone here just went out and bought enough fabric to constitute a stash. A stash happens gradually. Whenever you buy for a project , buy some extra for a stash. When you go on vacation find the nearest quilt shop and buy some fabric you like. Shop your LQS and buy a few yards for your stash. Pretty soon, you'll have a stash. Don't buy too much to keep on hand as Im sure your tastes will change over time. I only buy what I really, really like and there are some fabrics in my stash that I will never use up because I just don't care for them any more. I'll never get rid of them as they are part of "my stash."