Well, the whole reason I found ETS was that I'm doing research and trying to put together a PSK for my vehicle.

As I'm putting the kit together, I'm using a lot of ideas from ETS and a few other random places, but I found that I actually came up with one on my own, so I figured I'd share it and see what everybody else thinks of it:

Most PSKs include some duct and vinyl electrical tape in them, either as mini-rolls or folded flat. I tried making a mini-roll myself and the durn things just wouldn't roll straight enough.

But then I had a brainstorm, and it seemed to work pretty well - I used an old WalMart gift card as a core and wound 10' of duct tape around it. Finished thickness is about 1/4", and of course, the length and height are only slightly larger than the card itself; I can almost carry one of these in my wallet.

If I were to trim the cards length by about 1/4"-3/8" before rolling, I probably COULD carry one of these in my wallet, especially if I went with only 5' of tape instead of 10' to decrease the finished thikness.

I did the same thing with vinyl electrical tape and wound two 10' lengths around a single card, side by side.

I don't know what other uses these cards couild be put to in the field after the tape is all used, but there's got to be something.