Believe it or not I use all my caps though not all at one Tim because that would be quite clumsy and odd. I rotate about 2-4 of them weekly and mine will never show UV damage unless it really has been ages because I do not let sunlight in to my room. Those are in babies and cases then encased again because I have an OCD with people touching any of NY stuff with greasy fingers. Dirty is fine but grease isn't because it degrades your items and it gets on everything. Had to protect them since it was for the keycon trip