Strive for lived-in, cozy feeling. Discard worn, chipped, frayed furniture. Add lamps if dark. Set out fresh flowers, perhaps put a drop of bath oil or vanilla on light bulbs for subtle scent. Many buyers judge the house keeping by the oven and stove.
Appliances are spotless and everything works perfectly.
Replace or repair anything that sticks, squeaks or drips. Clean butcher block. The master bedroom. Practicality combines with attractiveness. Fix leaky faucets- rust stains indicate faulty plumbing.