I use a clear plastic hanging shoe closet, $20 at Bed Bath & Beyond. It's about 12" square and just long enough for a roll of 24 exposure 35mm. I develop in my very dusty basement and have not yet had a dust problem. For 4x5, I have a small wire across the closet and hang a few clips from it. Small snack bag clips work great for 35mm. Edwal LFN with distilled water, no wiping or snapping.(posted 8200 days ago)I thought of building a drying cabinet with a fan, filter and maybe a 60w light bulb, but gave up since the closet works so well. Maybe if I needed the film in a hurry or did a lot of developing, I might consider building on. Home Depot has a 5 or 6" square plastic tubes, I think used as decorative covering for fence posts or porch pillars or something. More usable space than a round pipe would have, easier to cut and modify for a door etc.