Thumbs,
I just melt the lube, whatever you are using, in a double boiler, which is just a pan in boiling water. I cut my felt into about 3" wide strips and soak them in the melted lube. I then lay them flat on wax paper on the counter and just run a flat plastic squeege or wide putty knife over them lightly from end to end, just to remove any excess lube. The excess lube can go right back into the pan. I then just let them harden. They will peel right off of the wax paper. I then lightly dust them with a bit of corn starch, so they don't stick together in my arch punch. I then punch them out and put them in a plastic bag. I normally add maybe a teaspoon more of corn starch and shake the bag to make sure they all are loose. I store mine in an old chewing tobacco tin for cowboy shooting, looks a little more PC. The rest I store in prescription drug bottles until needed. They will last forever, depending on the lube. Some guys freeze them, but I use a BW/EVOO mixture and never had any problems with storing them in the bottle. My normal mix is 50/50 BW/EVOO. In the summer hot weather, I change it to 60/40. If they get really soft, just sprikle a bit more corn starch on them. The corn starch has no effect on firing or fouling. I just keeps them from melting in the hot sun and your fingers don't get sticky while loading them ROA's or whatever you shoot. By the way, the fabric store stuff thats about 35% wool, will work just fine too. Our shooting bunch has been using it for years. The small amount of synthetic just vaporizes and doesn't cause a problem. It is also much cheaper.