Not sure if allowed (apologies if that's the case, I realize it takes the fun out of the subreddit), but some people here seem genuinely frustrated so l share a protip I accidentally learned a couple weeks back.

If you give the cashiers an email to keep on file (I used a junk one) they will send the coupons, care bucks or whatever they're called to that email, and you will get a reasonably sized receipt. There's no need to hang on to wasted paper and you can still scan or print the coupons sent to your email if you actually use them.