Houses almost always look better when furnished than when empty -- they also look larger! If you are moving to another residence and plan to take your furnishings with you, if possible, arrange things so that you show the house before you move out of it.
I don't care how well designed or clean your home is, everyone needs to stage their home to sell it efficiently, and you do not need to spend any money to stage your home. Time, yes! Money, no! The right approach is simply a change in mindset.