I posted in one of these car threads about auto care...can't find it.
anyway, "Mother's" & "Meguiar's" make great cleaning products, their leather cleaner/conditioners are the best.
Lexol makes a good cleaner/preserver too.
I had this one cleaner I got from work, it was in a little spray bottle and it was gold...I can't for the life of me, remember what it was called but it was some of the best quick clean-up leather/vinyl cleaner I ever used. after I moved, I lost one of the boxes with my auto detailing supplies.
I've been detailing for almost 8 years, take my advice in whatever shape or form you want.