This is wonderful for our 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 object on walls. Patch and paint if necessary. Review the house inside room by room. Paint any room needing paint, clean carpets or drapes that need it, clean windows.
People expect that.
Leave on certain lights during the day. Have stereo FM on during the day for all viewings. Make sure they are swept and cleaned. Look at all plants prune bushes and trees. Keep plants from blocking windows.