Have you ever used a promotional discount before?
Apparently online you can get discounts by typing in numbers when you are ready to pay. Usually they are entered into the page which has your order on it, and then it is automatically calculated when you are ready. What I always wondered about was where you found these codes. I was given one when I wanted to get a domain, and it was GoDaddy promo code 2009 that I had to type in the space provided. I am not sure where my friend found it, and would like to know so when I need a savings I can find them myself.
