Simply put, not as often as the rest of the house gets cleaned. My dh does most of the cleaning in our home, with the exception of my sewing studio. He dusts once a week. I dust about once every 10 days. It's not pretty. I swear one of these days one of those dust bunnies is going to attack our 5 lb dog and win! Scary to see what I pick up. If I've been sewing, dust grows like weeds on steroids!!!