There are two ways to completely ensure that dust covers every single square micron of your house. One, drywall sanding. Two, paint the ceiling with a power sprayer. My house is a mess. And that sprayer is one nasty contraption to clean (However I don't recommend painting the ceiling without one cuz that's even worse). On the upside...Beth and I got our taxes done today, and we're getting a refund from Uncle Sam this year! Twenty-seven dollars! Woo-hoo!