I shield my home regularly. I have wards over my door made of cedar and tobacco which keep out "bad spirits" and energy. These have to be changed as they dry out and wither. I also smudge my home regularly in a clockwise motion to chase out any bad energy that may have made its way inside and restore a natural, peaceful order. I don't particularly shield myself, I cleanse myself when necessary and practice breathing techniques and meditation in order to keep from absorbing the feelings of everyone around me (important to me because I work at a Woman's Shelter).