Piping is one of the easiest embellishments out there, and for the time you spend and the results you get, it's worth every minute. Piping can adorn the edge of a collar, pocket, hem or sleeve. It can be added between visible seams (such as princess seams), at the waistband for a pair of pants, or it can follow the outside contours of a jacket. In home décor items, it can embellish the edge of a pillow, valance or curtains. The sky's the limit with piping.