Home improvements SCOTT FRIEDMAN Laurie Sutter, of Laurals Aromatherapy, gets her handmade potpourri ready for sale at the 19th annual Home Show and Interior Design Expo at the N.J. Convention and Expo Center in Edison on Friday. For more photos, see page 3. PHOTOS BY SCOTT FRIEDMAN Left: Dennis and Catherine Cox, of Edison, get a demonstration of the how absorbent the PVA Mop can be at the 19th annual Home Show and Interior Design Expo at the N.J. Convention and Expo Center in Edison on Friday. Above: Linda Vela, of Newark, gets her teeth whitened by Susan Drazen, owner of Light Smile.