OP, I'm about to blow your mind. In the death throes of Kmart/Sears, they would abuse their Shop Your Way Rewards (SYWR) and would occasionally email me free deals with no minimum purchase required. They'd toss me $7, $15 worth of points to use on anything in the store, and I would get random stuff I need or sort of need and try not to go over the free points amount. Their goal was to get customers like me in the store but I was not buying anything beyond my points, so ultimately it worked against them. Stuff like a Ski Mask, Garden tools, kitchen gadgets, baby clothes... if I had $7 worth of free SYWR points I'd spend $7.02 on any combination of things and leave. Laundry detergent, a bathtub stopper... I am remembering the stuff I got for free this way.
Multiply this by their Black Friday deals. For large purchases, such as exercise equipment (I did this twice: 1 elliptical, 1 stationary bike) not only would it be discounted for BF but they'd offer X amount of weeks with Y amount of points as part of the deal. Something like $10 a week for 15 weeks. I would do the same thing and get random shit without going over, it was glorious and I absolutely abused the shit out of it. They have since stopped sending me offers right around the same time my local Kmart closes. I still have a Sears nearby.