Managing Fridge Space, Jet Trash Style

One downside of the jet trash lifestyle: lack of fridge space. Not the inside: the only items in my fridge tend to be fresh veg, beer, white wine, chili sauce, and lime juice. I'm talking about fridge-door real estate, which gets taken up with postcards, photos, ticket stubs, flyers, and cool magnets. There's a way around it, but it involves thinking... inside the box.