Blankets, pillows, slipcovers, drapes and other textiles not only trap household dust, but they create it as they shed and disintegrate. Curtains and drapes, in particular, get dusty because they absorb moisture and dirt from the outside and act as a landing pad for dust from ceiling fans and air vents. The best idea for how to clean dust is to buy machine-washable items and launder them twice a year (OK, at least once). For non-machine-washable textiles, throw them in the dryer on the air-fluff setting (no heat) for 20 minutes with a damp towel. The damp towel will attract pet hair, and the tumbling movement and airflow will remove the smaller particles for you.