Coupons (also known as "vouchers" and "promo codes") are great because you get an upfront discount before you buy.
STEP 1. Collect your discount coupon from PowerBuy
STEP 2. Provide your discount coupon in-store
STEP 3. Get a discount before you make your purchase
Depending on the deal coupons can be redeemed online or over the phone. In most cases coupons can only be redeemed at a designated store.
For example, visit the Dell website, choose your product, and then enter your coupon code at check-out. The price you pay will drop by up to 20% (depending on product).