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. Paint any room needing paint. Clean carpets or drapes that need it.
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. Keep plants from blocking windows. You can't sell a house if you can't see it.