Thanks for the response, as always! I use Fiebing's Saddle Soap Paste: http://www.fiebing.com/catalogue/soaps-oils/?product=97 Not because I'm loyal to it, but simply because it's what my nearest cobbler carried way back when I bought it. I use a wet natural sea sponge to work up a lather and apply it. Once it's dry, I wipe with a cloth and then buff with a brush. Like I said, it's really just one particular belt that I regularly use it on (a thick, heavy, casual leather belt that is usually worn with jeans). I have a pair of saddle shoes that I used it on for a while, made from Horween's Dublin leather, but I quit because I didn't like the build-up that started developing around the stitches. However, that was happening by following the instructions on the back of the tin, which doesn't say to rinse off the leather. If I ever have cause to use it on them again, I'll certainly make sure I rinse it better, and I'll do the same with my belt. One follow up question to your response above. Do you always recommend conditioning while the leather is still wet? How about in the case of shoes that get saturated in a downpour? Most of the information you find out there recommends letting them dry in the standard method (on their sides, away from heat, stuffed with newspaper, etc.) and then conditioning/polishing after they have thoroughly dried. It actually makes perfect sense to me that conditioning them while wet would keep the fibers properly lubricated while the water evaporates. But again, that's not what you generally find recommended "out there." Not saying I believe everything I read, of course.