So, I was wandering around at Wal-Mart today, and happened to notice something on the shelf (While thinking that I should clean my gun one of these days): Gun-Foam and Gun-Flush. From the label and their website (www.gunslick.com), it sounds like it makes cleaning and maintenance a whole lot easier (which is a good thing, for me). It didn't seem terribly expensive, but then, I didn't really compare prices or anything. Anyone used any of their stuff before? Is it worth it?