Depending on what's on your shelves, you might find my solution of use. Whenever things are a bit too dusty in my house I put on a filter mask and fire up an electric leaf blower. Blasts all the dust off of the various hard-to-reach surfaces and into the air. Then I either use a high-volume blower fan to circulate the air out of the house through a window (if the weather's nice) or if it's winter I just let it settle and vacuum it out of the carpet (some ends up back on the shelves, sure, but most surface area in the house is floor so it's still a net win).

Some other stuff gets knocked off the shelves in the process, but I just consider that a sign of weakness. Those things didn't deserve their prominent position on those shelves to begin with.