How do you clean the dust off your collection? Lately I've been using our shop air compressor to blow the dust off rather than washing them off.
I've tried using one of my girlfriend's makeup brushes... It's a little too soft to do any deep cleaning, but it helps. Canned air also does OK, too. Otherwise, my fingers or paper towels (plus fingernails) mostly work.
I keep a lot of my stuff in display cases or fish tanks. I find dust during the winter time is especially brutal when all the windows are closed up and the hvac is on. In the summer its not so bad, but i'm very OCD about my tformers getting dusty.
The worst for us is the pollen. During the summer we get a month or so of pollen and there's yellow dust every where!
I use a Swiffer duster but I've found frequent vacuuming of the room is probably the best way to keep dust off.
I first go over the figure with an air can to blast off all the loose dust. Then I go over the large surfaces with a large soft make up brush and then use a small soft make up brush for the difficult to reach places.
Alts/Binaltech seem to collect alot of dust & for those I use a damp cloth. When it comes to G1 (which can have alot of flaky stickers), I've heard of horror stories of people using a damp cloth - causing the stickers to come right off. When I dust my G1/BW/Classics-Henkei, I either blow the dust off or use a very soft paintbrush to get into all the nooks & crannies. Dusting can take hours & hours to do but I find that my G1/BW/Classics-Henkei shelves are so tightly packed together, hardly any dust seems to build-up in between the figures. Sure saves me having to dust 'em too often...