Yes there are several things that can be done to enhance and keep the space clear following the space clearing. It is important to be aware that like our bodies, our environments are sensitive to the energies we bring into them. This can include our actions, thoughts, emotions, beliefs, objects and people. Be selective of what you allow into your house and try and practice good energy hygiene practices. You may find the following blog posts 7 Tips To Keeping Your Home Energetically Clear and 7 Tips For Preventative Energetic Protection of interest.