Searching around I found this:
The Shark Navigator Powered-Lift-Away DLX NV581, $100 off at Target.
Plus 10% off if you choose in-store pick-up.
Another 5% if you use your red card.
Finally another $5 off using a $5 off 50 coupon code: TGTJB4DD
(I don't know if this is a one time code- just did a google search for Target Coupon Codes).
My final came out to $166.24 before tax- not bad for a Vac that is selling at Amazon & Home Depot for $299 right now.