[swaginator]

Prior to covid, yes. I haven't eaten McDonald's since covid, but in college I would use the app + whatever promotional "buy one get one" coupons they had going on to hit some devious combos. Usually I could get 3 burgers for like $2.50 with free fries. Each purchase usually gives you another bogo coupon, or a survey that you can fill out for free fries, so you end up in infinite loops of coupons.

[to11mtm]

When I worked at a bike shop there was a BK that would give you a survey, you could fill it out and on your next visit get a chicken sandwich or whopper with a drink purchase (I think it was a drink, anyway).

Looping that one paid for a loooot of bike parts lol.