Newspaper?
I've always wiped off any excess dirt with a wet sponge, wait a few minutes for them to dry off, then brush polish. Otherwise if they're not too bad just a good brush polish will do. Any gouges or marks in the leather I'll use a wet duster to layer polish in to the damage.
Occasionally instead of brushes I'll use a wet yellow duster to apply a better layer of polish, like the bulling style used in the military.
I had no idea people used newspaper!
(Late edit: Durr, you meant as a protection for the floor! Ignore me, I'm occasionally stupid).