12.- Spruce up your computer
Dust the CPU, clean and wipe down the keyboard, and dust off the monitor with a microfiber cloth
13. Straighten the closets
Declutter and reorganize
14.- Test smoke and carbon monoxide detectors
Or installe them, if you haven’t yet
15.- Replace the furnace filter
If you haven’t changed your furnace filter within the past three months, do so now
16.- Sweep the furnace filter
Have the wood-burning fireplace and stove flues and chimneys professionally inspected and swept