Monthly

• Clean kitchen sink disposal. There are a bunch of ways to do this, but the handiest and best all-around solution seems to be vinegar ice cubes. Put some vinegar in an ice tray and let it freeze, then run the ice cubes through the disposal. It freshens it, but as a bonus, ice sharpens the blades. You’re welcome.
• Clean range hood filters. If you’ve never thought of doing this, you’re in for a real “treat” when you get that filter off the hood to clean it for the first time. The Family Handyman suggests simply using 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 go.

Quarterly

• Run water and flush toilets in unused spaces. This mostly applies to guest bathrooms, or any other sinks/water sources you don’t use on a regular basis. The idea is to prevent grime or any other kind of build up. Regularly running a little bit of water through will prevent this.
• Check water softener, add salt if needed. You shouldn’t need to add salt every month, but better to check anyway, as it only takes about 5 seconds.

Biannually

• Test your water heater’s pressure relief valve. This will prevent mineral and corrosion buildup, which safeguards against leaks. It will also help your heater run more efficiently.

• Give your house a deep clean. Take one Saturday every six months with your whole family, and give the whole house a proper deep clean. Appliances, windows, dusting every nook and cranny (including the basement), etc. Keeping things clean and not letting dirt/grime/dust build up over years and years will help keep your home in tip-top shape.

• Vacuum your refrigerator coils. I actually learned this tip from a refrigerator repairman, and our research confirmed it. The fridge can use up to 15 percent of your home’s total power, so you want it running as efficiently as possible. Over time, the coils get dirty and your fridge requires more juice. You can save up to $100 a year by doing this, and it’s not at all a difficult task.