Many factors can affect a home's sale price, some of which are out of your or your agent's control (think your neighborhood's location or nearby competitors). One thing that makes a substantial difference and is in your control, however, is cleanliness! When examining a home, potential buyers look for clean, light areas that make a home look warm and inviting. Properly cleaning your home before an open house or before a buyer checks it out can affect your sale price substantially. Whether you're cleaning your property yourself or hiring outside help, make sure you do it right. Take a look at this visual checklist before getting down and dirty for advice from industry pros and tips on cleaning each area of your house.