You don't need anything else, but while you are at CVS, you may want to see if they have any microfiber cleaners. They are the kind used for the glasses, that won't cause scratches. You use the coffee filter for the majority of the goop, then do a final wipe with a microfiber cloth.

BTW, while you are there, you should ask the pharm. if they have 99%. There may be some stock behind the counter.