Help, scotchguard or similar protection for shoes?

[Autumn]

I bought a pair of tan/white tennis shoes that appear to be mostly nubuck. I didn't think anything of it until, after proudly displaying them to my mother (and she really liked them), she suggested that I scotchguard them.

I've never really cared about my shoes until recently, so I have no experience with protection/cleaning products. I could use any advice or product suggestions, really.

I'd also like to do something for my leather boots. A coworker recommended just taking them to a professional cobbler and having them clean and shine them, but I imagine there's ways of further protecting them too.

[Lisbeth]

Use Scotchgard for the cloth shoes.  Use mink oil for the leather ones.