We have the gas thingy at the grocery store too and it's for the gas station we frequent. But we never use the points. I don't even know if there's an expiration date on the points. Now the grocery store we shop at most frequently has a thing where you collect stamps of some sort and they're good on dishes the store carries. (We don't collect the stamps.) If you get in a check-out line where someone is cashing in their stamps, prepare to wait a l-o-n-g time!
We still don't have a smart phone... just an old dumb phone. Smart phones are too much technology for us. That's another reason I doubt we'll ever buy another car. Too much technology. Even our 2008 SUV has stuff on it we've never used. Is it even possible to buy just a normal vehicle anymore? I don't know. But I doubt it...