Use a coupon for your purchase and obtain your repair tape, wires, switches, outlets, fuses and adapters. Also, find replacement battery chargers for phones, tablets, computers, laptops and other devices. Shop at large department stores such as Wal-Mart, Sears, JC Penny, Harbor Freight or Lowe’s. You might also browse for items you need at one of these specialty stores: Motorola, Radio Shack or Hardware World. You can find items for just about every room of your home, office and car. Apply electrical-supply promo codes to your purchase when you check out, and the amount deducts from your shopping total.