I couldn't find the coupon, but that makes it even sweeter! Put off the tool and get the DC. In my small shop, I added the Wynn folded filter (canister type). It costs about as much as the DC on sale, but I don't have any sawdust flying around any longer. Uline has 30-50 gallon fiber drums with metal tops, or use a trash barrel. Rockler has the connectors needed to turn the drum into a chip collector, and the 4 inch fles hose to hook it all together.
The more I do, the less I accomplish.