Have you ever bought fabric not knowing what you would use it for?

Most of what I have I bought without a clue as to how I would use it. I have garment fabric that is not used because my tastes have changed or I am not sure what I want to make out of it. Oh my the shelves need straightening also.

I bought this fabric for a applique background and I wish now I has twice as much as I do. But it was on sale and it was the end of the bolt.
Fabric buying is trick job. My dilemma do I buy enough or do I have enough to work for what ever I decide to make with it. Do you have this trouble also? How much fabric do you buy when you find a piece that works for you? Chris