The way you live in a home and the way you sell a house are two different things. First and foremost, "declutter" counter tops, walls and rooms. Too many "things" make it difficult for the buyer to see their possessions in your rooms or on your walls, however don't strip everything completely or it will appear stark and inhospitable. Then clean and make attractive all rooms, furnishings, floors, walls and ceilings. It's especially important that the bathroom and kitchen are spotless. Organize closets. Make sure the basic appliances and fixtures work and get rid of leaky faucets and frayed cords. Make sure the house smells good: from an apple pie, cookies baking or spaghetti sauce simmering on the stove. Hide the kitty litter, and possibly put vases of fresh flowers throughout the house. Pleasant background music is also a nice touch.