Holder for Photographic Filter Samples

If your reading this, you're some kind of a photographer... might just be getting into it, or you're a hardened strobist.  Either way, this is for you if you've ever tried to keep those pesky little slippery Lee (or Rosco) Filter sample packs in your bag with some resemblance of order.

I had mine strapped to a hair band, that barely sufficed..  I tried using a CD sleeve, that didn't quite work either.

I've discovered the solution.

Walmart sells them under their brand name "MainStays".

They are 1-3/8" Utility Rings.
UPC:070042148510'
Cost for 12: $1.25 plus tax.
Value to the Strobist: Priceless.