If I bought every fabric that I just "liked", I would need at least one more house to store it all in, lol! I rarely buy fabric on a whim though. I have a great deal of self restraint in that way. If were to do that though I would not buy more than three yards because, backings excluded, I've rarely seen any pattern that calls for more than three yards of any one fabric and I am willing to piece in a different fabric in a similar color to make what I have stretch. Two and three color quilts being the exception of course. I make bed quilts exclusively. If I mostly made runners and wall hangings or other smaller pieces I would probably limit myself to 1/2 or 1 yard. Also, I'd never spend more than $6.00 on any one yard of fabric. Even though I'm very thrifty with my purchases, I have enough scraps to last me at least 10 years so I am still buying too much when I do buy. My latter years are going to be spent making scrap quilts, I am sure!!