I hose off my boots, let them dry outside for a few days. Kiwi shoe polish. Currently, I have a pair of Wolverine boots that I bought in '96 and resoled once, going strong with no cracks in the leather. A pair of Chippewa's, the inside is falling apart but otherwise OK (from '98). All of cheap surplus Jungle boots I tossed when I wore out the insoles, not the leather.

So, Kiwi is great in my book.