I've got a little freebie thing from a conference that's got a 2.5" wide small, soft brush on one edge. It's designed for getting the daily dust specs/etc. off quickly without any mess. Obviously, it's not designed for fingerprints or coffee splashes, but I'm (probably overly) careful with my LCD screens and almost never touch them (and I certainly don't splash stuff on them). Thus, the brush thing is good 99% of the time.