Since I'm decorating a small space, I tend to change fabrics and accessories rather than making big changes with the furniture! Pillow covers, in particular, are relatively inexpensive and can significantly alter the bedroom atmosphere, so I tend to collect them by color..! I find it nice to organize just the covers separately like this and store them in the closet; it makes them easy to find and keeps everything tidy..! (It's not quite organized yet, though..^-^)