Now is the time to go through all of your files. Who says you have to wait until the Spring to get some cleaning done?
Clean out your filing cabinets. Go through your 2016 files and archive what you need for taxes and shred documents which you no longer need, less clutter - the better!
Organize your home improvement files. Review warranties and check on recommended maintenance for your furnace and appliances.
Sanitize hard surfaces such as countertops, laptops, TV remotes, etc. Wash your children's stuffed animals. It's cold and flu season, after all.