Found Great Retail Deal!

I was shopping for shoes, and found the "Perfect" pair to go with my hot new outfit.  But they were not on sale and I really wanted them.  We'll I decided (against my better judgement) to get them anyway.  When I went to purchase them I used my Chase Visa and "YEA!!!" they said that I get a 20% discount using that card.  I was like super happy and completely taken by surprise.  I'm going to check what other discounts I get.