Rearrange or remove some of the furniture if necessary. As owners, many times we have too much furniture in a room. This is wonderful for our own personal enjoyment, but when it comes to selling, we need to thin out as much as possible to make rooms appear larger. Take down, or rearrange certain pictures or objects on walls. Patch and paint if necessary.
People expect that.
Leave on certain lights during the day. Have stereo FM on during the day for all viewings. Go around the perimeter of the house and move all garbage cans, discarded wood scraps, extra building materials, etc., into the garage. Make sure they are swept and cleaned. Keep plants from blocking windows.