Inspect exterior surfaces for cracks and make any needed repairs.
If paint is peeling, cracking, or chipped, repair and repaint now to limit damage to the underlying materials.
Repair any damaged caulk around windows and doors.
Remove window screens and clean with a soft brush and soapy water. Repair any holes or tears or replace the screen material before reinstalling.
Have air conditioning units serviced to ensure good operation. Promote air circulation around the unit by keeping shrubs and plants trimmed.
Clear debris from gutters and eaves to allow rainwater to drain properly.
Seal cracks in the driveway and keep walkways clear of debris and overgrown plants.
Test irrigation/sprinkler systems and replace any broken sprinkler heads or emitters. Check for proper water coverage and adjust if necessary.
Clean deck and patio surfaces and seal surfaces as appropriate.
Empty dehumidifier pans and clean hoses according to the manufacturer's instructions.
If possible, take area rugs outside and hang them over a deck or porch rail to air out.
Adjust ceiling fans for proper balance. While you're at it, give the unit a good dusting.
Switch heavy bedding out for lightweight summer fabrics. Have the winter bedding cleaned before storing.
Close the chimney flue where appropriate to increase energy efficiency
Repot houseplants to give their roots a fresh start for the summer.
Check door and cabinet hinges and lubricate any that stick or squeak.
Open windows on cooler days to keep fresh air flowing throughout the home.