I don't know if you have a Hancock's in your area, but their sales are just as good as JoAnn's when it comes to supplies. Right now, until mid April, there's a sale where all cutting supplies (scissors, mats, rulers, blades, cutters, snipper's etc.) are 40% off.
JoAnn's is going to have a sale in about 10 days where all their thread is going to be50% off.