Action Figure Fury notes a potential danger to your collection. Evidently, those Ziploc bags we all (well, I, at least) use to store our action figures could be hurting them:

The plastic that most bags are made from are actually acidic. If you are using them for daily life like storing your sandwich for eating later that day then I’m sure that you will survive. But if you are going to be storing your action figure in there for years on end then you might be having some problems later on down the road.

The acid will slowly over time destroy the paint and even the plastic of the figure is you leave them in the bags long enough.

I tried to dig around for more information on this – because as much as I respect AFF, I try not to take things I read on the Internet at face value – but only found this similar post at One Per Case. Both blogs recommend using GTZIP’s “Ultra Clear” line of bags instead of the traditional zipper bags. They’re not cheap, though.

So, any chemists or scientist-types out there who can shed some light on this either way?