Inspect, and possibly change out HVAC filters
Experts will say to change the filters monthly, but that depends on the type of filter you use. Small families without pets or allergies only need to change them ever 2 or 3 months. Check the filter thoroughly. If it’s very dirty and clogged with dust or pet hair, change it. If it hardly looks any different than when it was installed, inspect it again next month.

Clean kitchen sink disposal
There are several methods, but the easiest is with vinegar ice cubes. The vinegar will clean and freshen the disposal overall, but as a bonus, ice is said to sharpen the blades.

Clean range hood filters
This is a task you don’t want to skip, as the build-up in the vent hood filter is a fire hazard. Use a degreaser from an auto parts store mixed with hot water. Let the filter sit for a few minutes, rinse it off, and you’re good to replace it. If you’ve never thought of doing this, the first time will be the worst and least pleasant.

Inspect your fire extinguisher(s)
This inspection doesn’t require much: ensure the extinguisher is quickly and easily accessible, that the gauge shows adequate pressure, and that there are no visible signs of wear and tear.

Wash and rinse the clothes dryer lint screen
A quick soak in a vinegar and water solution should clear it of buildup and debris. Like with the range hood, build up can be a fire hazard. Brush off any remaining lint before washing.