So, I won a Night Below boxed set several months back, and the contents were in great shape, but the top of the box was depressed too much for my liking.  I wondered how I could gently shape it back without damaging the box.  

I ended up filling the empty space in the box with thick bubble wrap, and fitting it inside a LIFE Magazine bag.  The box fits snuggly inside the bag, and looks almost like shrink wrap.     The bubble wrap forces the top up and out ever so slightly.  I am hoping ten years from now, it might be back similar to new.  It might take longer, but I doubt it could hurt anything. Then I realized my Rod of Seven Parts box was a similar size and, sure enough, that worked like a charm too.  There are likely other boxed sets that work well with that sized bag.

This may be old news to most of you, but for those of you who didn't know, and you like your collection looking like shrink, then maybe this will make your collection look a little nicer and possible reverse some unsightly cupping.