And to add you need to figure out where the heck is all that dust coming from? 
I get very little dust in my studio because of the construction of my home. My wife has allergies so we keep dust out of our home using common sense.
 
The backwards vacuum is a bad idea, Vacuums are filthy, you just spreading more dust.
Use an oiless air compressor like most computer techs have.  
 

I live in an area with a lot of pollens plus most dust is purely natural being made up of hair and skin cells. If you sit in a room a lot like many of us do, dust can be a major issue from simply being human and not wearing a contamination suit.
 
There are certainly ways to battle it. One of the ones I'm going to try is attaching a furnace filter to a box fan which works very well. https://www.youtube.com/watch?v=kH5APw_SLUU
 
Be wary of systems that mess with ozone. They have been linked to some pretty bad stuff.

I started the thread because I wanted to know how others deal with dust.  There was no mention of frequency :)
 
It doesn't matter if I'm dealing with dust every week or once a year or three.  I'm stil curious how best to deal with it either way

Cactus Music
The backwards vacuum is a bad idea, Vacuums are filthy, you just spreading more dust.

I can sort of see your point, but in practice it works very well.  Maybe because I use an Electrolux with HEPA bags.
I've always blown out the insides of my computers and they're very clean.  Of course, if I had a cleaner source I'd use it, but I don't see the need.
 
Blowing air is the only way to get dust out of tight places.
 

Another thing to note is that forced air heating/cooling can often exacerbate dust. If you have access to register plates, there are also disposable filters that attach to the back side of registers to cut down on the amount of dust entering rooms from the furnace fan (which can suck dust from one room and blow it into another). Vacuuming out ducting on both supply and return vents can be a real eye opener for some.

You need to keep on top of dust though, otherwise it starts multiplying...
 

I go by the philosophy that vintage dust makes stuff sound better. 

Nearly all indoor dust is human skin cells.
 
I use cloth covers with print only on one side to reduce.
 
I use a small compressor/blower to de-dust computers and equipment, out of doors. Never on a way humid or cold day to avoid the compressor spitting water drops.
 
And I purchase rolls of furnace filter material to use on all vents from the furnace. Changing the return air most often.
 
I did have an electrostatic collector in the studio that I ran when not working.  It broke just before the move. Time to get another.
 
The dust brushes are useful.

drewfx1
I go by the philosophy that vintage dust makes stuff sound better. 

I can say first-hand that this is NOT always the case!! 

drewfx1
I go by the philosophy that vintage dust makes stuff sound better. 

The only vintage gear in my studio is my restored 1963 AC15, everything else is modern digital gear.
The dust is small individual particles.
 
 
Even the dust is digital...