Every time I buy something online I google for a promo code, this has helped me at least 3 out of 5 times, sometimes it's free shipping other times it's 25%, but the other day I was on a website that offered 15% for new customers, it just showed up automatically but me being the skeptic that I am, still goggled for a promo code, and it ended up being free shipping so the 15% was a better deal. I took off the promo code but then didn't know how to get back that 15% offer, even after I closed the browser it still was not showing me the banner for the 15% off, then I remembered that I read on the 9 secrets to online bargain hunting via MSN to delete cookies! and voila! it worked! I got my 15% off! Apparently the cookies was making the web site think I was not a new customer.