WHat type of work are you doing. Especially if your sanding drywall, turn off all lights or the dust will get sucked into the fixture. Also, ive seen guys build a plastic wall out of sheeting and them putting a hole in it and using a shop vac to suck the dust out of the room. Look into a product called zip wall. Its the same principle, but it has adjustable poles for holding the plastic up and it can be moved very easily. They are a little pricy but work well. I sell them to rehab companies all the time.