Do you know what is a flash sale? Well this are the kind of in store promo offers which will be happening for a very short period of time. This can happen for a day only or even for a few hours. You can look at the deal that we have here and you will see that this is something exciting. Truly these Michael's printable coupons is one of these flash sale event for it will only be happening for a very short four hours duration. So grab this deal on September 17, 2011 because it will be the day that the deal will happen. Have fun shopping.