Great Suggestion for a poll, Dave. One cannot rely upon my experience as I have not been collecting that long and really have no basis to go by.

In any case, I store my chips in 2X2 cardboard and (I guess PVC or whatever the plastic is called) folders and store them in notebooks of 20 on a page. So far, I have not had anything turn, bleed or have any other damage done to the chips.
By the way, they are also all insured.