I needed to buy a new water filter for my refrigerator today, so I went to the site that I always purchase one from and shopped around. Before I checked out, I was curious to see if there were any coupon codes for the store. I really didn't think I would find a code, but I wanted to check. I headed to my favorite place for coupon codes, RetailMeNot.com, and searched. I did find one, for 10% off of my purchase, knocking $4.00 off of my total! The last three times I have purchased items online, I have found coupon codes from RetailMeNot. It pays to check on coupon codes!