Time to stock up on painting supplies with this Michaels coupon! It has been a over a month since we last had one of these painting supplies Michaels coupons released. If you or one of your family members loves to paint then please use this coupon and save some cash! Great for gifts for the kidos as well, now is the time to stock up. See exclusions below, coupon is valid all week from April 21st, 2013 to April 27th, 2013.