I use precut patches, but for plinking, I use spit.
When I did the HHA woods walk last weekend, I kept a patch in my mouth. I'd shoot, use the patch in my mouth to load, then put a new patch in my mouth and keep it there till needed to for the next reload.
Loads fine, shoots fine.
For hunting, I use a bear fat/beeswax mix I was given, but I bought some beeswax and have a line on a source for some bear fat (I'm not a bear hunter, lol), so I should be able to mix up a bunch and...as was mentioned, not have to be concerned with store inventories.
I have yards of fabric I use to cut patches as needed. Probably have enough on hand for years of shooting. I found for my 62 that the cap from a gallon jug of spring water is the right size template, so I just trace that, then cut them. A buddy made me a cutter from a length of capped pipe. Then I moved. It's in my house...somewhere. lol