Happened to notice that Harbor Freight (online and instore) has a big sale going on. Website has a 25% off one item Super Coupon, and another 20% off one item Coupon. Both say 1 coupon per customer per day however, so Sat and Sun. Not sure if stores will be open Easter Sunday so call first.
Some item sale prices are good through 4/30, like the Bunker Hill Security Alert Systems on sale for 9.99.
Their flyer says that they have been on an expansion move and lots of new stores have opened or will open.