I use half Murphy Oil Soap and half 99 percent isopropyl alcohol. Can't get it any more, but K-mart has 91 percent. The rest is water, is why I don't use rubbing alcohol at 70%. Mix it in a squeeze bottle to lube at the bench. Or prelube the patches at home. I cut round ones with gasket cutters. Store them in a capbox, about 25 at a time. May have to relube them in the box, they'll dry out in about two weeks. For thick patches, I use 10 ounce cotton duck from Wal Mart, it is about .020 thick. Their pillow ticking doesn't seem to work well any more. With this lube, I never have to clean between shots, maybe up to 30 or 40 at a test session.