Open all drapes & curtains to let in as much natural light as possible.

Clean windows, inside & out.

Paint hallways & rooms that look dingy & touch up any areas that have been marked up.

Steam clean or replace stained or worn carpeting.

Fix any doors or cabinets doors that stick or have loose knobs and dripping faucets.

Clean and organize closets, making them look larger & appealing to buyers.

Clean the basement & garage thoroughly.

Make sure all lights are working properly, replace all burned out bulbs.

Remove all excess items from kitchen & bathroom counters.

Have all dishes done & put away.  The kitchen sink should be empty & spotless.

Run a damp cloth over the water heater, softener & furnace to remove all surface dust. 

Replace the furnace filter & fill the water softener tank.

Remove as many personal items in the house as possible. You want a buyer to be able to envision themselves in your home. It is difficult for buyers when a home is filled with too many personal mementos.

Repair any damaged or discolored calking about the bathtub & shower areas.