I'm going to echo what kincanucks stated. Dry clean your DEUs, spit shine your shoes/boots with parade gloss and use a lint brush (nothing fancy, just one of those red ones with the arrow pointing in the direction you're supposed to brush). I wouldn't recommend polishing any of the metal you get from the CF, most of it is perma-shine, such as the buttons and belt buckles, the issued cap badges are also perma shine and real brass ones are usually an extra thing that you purchase from a kit shop. You'll destroy your perma-shine stuff if you try to polish it with brasso or anything like that.