If possible keep all clothing in a closet or dressing room apart from the bedroom area. Invest in an air conditioner. You'll be able to keep windows closed, so pollen doesn't enter. And you'll also be filtering out mold spores. The fewer you have, the better.
Molds love to hang around and grow on wet dirt.
Use your dryer. Laundry dried outdoors can pick up pollen and spores from the air. Try to use your dryer instead. Unclutter your life. Less knickknacks collect less dust.