Treatment of old leather

[M ELEY]

I know this has probably been asked a million times before, but a general search of the archives didn't find an exact answer for me. I was just wondering what others do to keep their leather grips in good form. I have heard mink oil works good, likewise leather boot polish or even auto seat polish. Frankly, most naval weapons I collect don't have leather, but now that I have one, I'm interested in other's opinions. (I always feel so selfish when I ask questions like this- , but hopefully others may benefit as well).