Jeez, I've just been letting the zillions of old car mags sit around my room in stacks, IN THE OPEN AIR!

Other than the fact that they start to bend near the binding from laying flat, they seem in fine shape- the very first issue of Classic and Sportscar I bought (June '88) is none the worse for wear than the last time I'd dug it out, a year or so ago. Frequent vacuuming helps, but no evidence of anything eating them (other than the couple of issues my cat got to).
As for storing them, I've recently begun sorting out this mess-I'm keeping C&S, MotorSport, and The Rodder's Journal, and need to store them. A member of another forum I'm on suggested Rogers Magazine Holders. They're long strips of plastic, about an inch and a half wide by thirteen long. There's a long slot about quarter inch wide running most of the length of the strip, with three hole punches on the other side. You open the magazine about halfway, and slip the pages through the slot in the plastic, gently sliding it down till it snugs up against the binding. The three hole punched side will be on the outside of the binding. Pick up a four or five inch D-ring binder, and away you go. Certainly not as elegant as having them bound properly, but I can get two binders, two packs of the plastick doohickeys, and bind up twenty odd issues for well under thirty bucks. The plus is, you can open the binder and remove just one issue to peruse, rather than having to go through a whole book.
-William