Peter Lederman from Soundsmith told me how to clean stylus. He said do not use a dry brush. Pick up that blue clay type product that is used to hold poster board to walls and comes off clean.
I found it at hardware store, Loctite Fun Tak.
Form a small column about 1 inch high and stick it to a quarter.
Place next to headshell and dip stylus onto top of column a few times before each use. After several "dips" of stylus, remold the Fun Tak so a clean surface is formed.
His carts cost in the thousands so I follow his advice.