ONCE a year????? hahaha! I have to do it at least once a MONTH! Invariably, the fabric I want is on the bottom of a pile, (I have them folded & piled by color plus some in drawers by color) but when I start pulling pieces out, they HAVE to fall down sometime!? Then I start all over! Of course, they're in the closet so when they fall, I can't close the doors! Have no choice but to clean it up because they always take a few more things with them! Plus the UFO's that are piled up! Couldn't pass up those great fabric sales! lol! :-D