Spring: Brush/vacuum window tracks; reverse ceiling fans to counter-clockwise; edit closets (3-in/1-out).
Summer: Keep humidity ~40–50% to deter mildew; clean AC returns monthly in peak use.
Fall: Clear dryer vent and bathroom fan grilles; place boot trays to protect floors.
Winter: Maintain humidity ~35–45% for wood; set a salt-mat at entries and wipe tile promptly.