Michael's is having a 4 hour madness event on Monday, May 31st 2010 from 9am-1pm. Just present this 20% off coupon to get 20% off your entire purchase including sale items. There are a couple of exclusions, so check the coupon for complete details.
If you scroll down you will also find a 40% off coupon good for 40% off one reg priced item, (You can use one of these coupons per day through June 5th, 2010), and a bonus coupon for an extra 25% off regular and sale priced frames, framed art and display cases. (Also good through June 5th, 2010.) Enjoy :)