Wallet interior pockets, a new-ish idea.

I am rebuilding a wallet I made a few years back which relied on "tricks of the trade"....instead of just doing it right. The card slots were made of a Tyvek 'ribbon' that was kind of accordion folded and held in place by double sided tape before eventually failing. So, in trying to build it correctly, I started with polyester lining fabric to form the card slots. It's very strong, very thin (0.004" or 0.1mm), and has virtually no stretch which makes it very appealing for interior card pockets. The downside is that the fine filaments snag on anything/everything, and it doesn't have enough body to stay in place AND stay in the same shape. Solution? Use the method taught in the cigar case course, and create a single layer composite that is still very thin, very strong, non-stretching....and now, dimensionally stable. After cutting, each pocket section is about the rigidity of waxed paper. The best part is there are no frayed edges. I'll be using the pieces to back up some modified t-slots, but using the stabilized polyester would absolutely work on slot pockets (from the Beginner course list). I'm certain this would work on nylon as well, and it's a nice way to stabilize the edges of synthetic material without melting/burning to prevent loose threads. I hope this is useful to whoever finds it. Mike