Drafty windows. Leaky faucets. Dirty air filters. All are common issues in homes across the country, and they’re not just annoying—they also cost you money in decreased energy efficiency and higher bills.

The U.S. Environmental Protection Agency’s Energy Star program estimates that homeowners can save 5% to 30% on annual energy costs by incorporating technologies to make their homes operate more efficiently.

Breakdown of home energy use:

• Heating: 29%
• Electronics: 21%
• Water heating: 13%
• Cooling: 13%
• Appliances: 12%
• Light: 12%

Where’s the air? Air commonly leaks from homes through gaps around baseboards, electrical outlets and windows or doors. Stopping these drafts can save up to 30 percent of your yearly energy costs.

Don’t wait to insulate Check to see if you have enough insulation in your ceiling and walls. The attic door or hatch should be insulated and close tightly.

Check your furnace and AC systems Have your equipment checked and cleaned by a professional each year. Filters for forced-air furnaces should be replaced as soon as they are dirty.

Let there be (efficient) light LED bulbs use 90% less energy than regular bulbs, and they last a lot longer, too.