Did you know that many stores allow you to stack multiple coupons at checkout? Kohl's has recently changed their policy and now allows 4 coupon codes!
See other stores that allow coupon stacking in our wiki at
http://www.buxr.com/wiki/coupo.....le_coupons
If you know of any others that are missing from the list, please add them in comments so we can update the wiki page.