老有人问rebate gc剩下来一些余额怎么办。刚才从slickdeals看到一篇文章，觉得不
错。
Folks... simplest thing to do is to convert rebate cards to gift cards at
groceries or retails chains like lowes, walmart...etc... everyone buys
groceries and you don't have to worry about how much balance in the gift
card...much better option than Amazon..
So here are the different ways (besides the normal way when you have a large
balance which covers the cost):
1. Tell cashier exact amount to charge (you need to know exact balance at
the time
