According to the Department of Energy, the number-one way to save money on pool heating costs is to use a pool cover—it could result in savings of up to 50 to 70 percent! Solar pool covers (also known as bubble covers or solar blankets) are the cheapest and easiest option for outdoor pool owners. The bubbles absorb the sun’s heat and transfer it to the cool water underneath, and the cover prevents the heat from disbursing back into the air. Measure your pool at its widest points and find a solar pool cover that is slightly larger than your pool—you can trim it down later if needed. Whenever you’re not in the pool, put the cover on. It will help keep out dirt and leaves, and it will save you money. Find the solar pool cover that will fit your pool right within the vast inventory listed on eBay.