I try very hard not to buy for stash. I don't have alot of space (though I probably have more space than money) and my tastes/interest are varied. That being said the smallest amount that I will buy for stash is usually 1 yard. If I know that I would use it as a border piece than 3 yards and if I know it will go with a variety of styles and colors then I might take 3+. It just depends on what I *think* I might use it for. I don't purchase too many fat quarters anymore.