(1) A bag or two I use daily, I keep without stuffing, without dust bag. They can be on the shelf or on the chair or even on the floor
(2) Ones I know I will use once a week/ or every other week on the weekends I keep on shelf with stuffing and dust bag
(3) Ones I use for occasions, once a month or less, I store on middle to top shelf with stuffing, with dustbag with box
(4) Ones I no longer carry, or carry rarely once in a blue moon I store on bottom shelves with stuffing, with dustbag, with box
My just turned our den, which has no window and has been our previous computer area, into a CLOSET! I wouldn't worry too much about my bags getting patina in there.. no way any sunlight can enter. Muwhahaha