For some buyers, the smell of fresh paint may be offensive. It might also lead prospective buyers to believe that you are covering up a problem by painting over it. You can offset the smell by mixing one gallon of water-based latex paint with three drops of REAL vanilla extract. This will help neutralize the paint smell of most paint brands. But be sure to check with the manufacturer before moving ahead. There are also some paint brands that do not contain the compounds that give off that new-paint smell. Again, check with a reputable source to find out if those paints suit your needs.