Shop for electronics in Mong Kok north of Tsim Sha Tsui on the peninsula. Sai Yeung Choi Street is the electronics center of Hong Kong, and scores of shops offer good discounts. The Yau Shing Commercial Centre also houses several shops. Bargaining is the norm: When buying electronics, know exactly what you want and know what it costs at home when on sale. Once in Hong Kong, don't buy unless the item costs less -- even including import duty. Before handing over any money, make sure that everything works, all pieces are included, the manufacturer's warranty cards are included and serial numbers on the box match those on the product.