Mine are on open bookshelves that line one long wall - except for the 2 end ones, which has sets of glass doors. I don't have to worry about fading, because of where the window is, plus its pretty shaded from a large maple tree. I also keep a sizeable stash in small and large plastic bins underneath my cutting counter, behind a curtain. As long as you're aware of what direction your light is coming from, and stop direct light on your fabrics, either way works.