Keeping your components Dust Free

I use a natural China bristle paint brush lightly sprayed with Pledge all surface dusting fluid to get in the nooks and crannies.  It is as soft as a make up brush but much larger.

Keeping dust covers over all my gear and speakers always, except when listening

I cover the vents on all of my gear with a piece of suede fabric to keep the dust out  and I remove it when the component is in use..

I still do most of the things that have been mentioned by others, including taking the top of the component every year or two.

One more vote for Swiffer -- the cloths that would go on a mop, I use as a dust rag. They seem to get dust to cling better than cotton. For speakers, I don't push, but let the light weight of the Swiffer cloth drag across the cone.