I have nothing against couponing, I just don't get a big enough bang for the buck. I use a few each year if I stumble upon them. I do use The Entertainment Book some, which is similar to couponing (especially the $20 off $100 at Dicks Sporting goods, and the family always need a new pair of athletic shoes once a year so that's a gimme). There are a few inexpensive restaurants we frequent that are in that book, so it works for us.
A lady at work is a big time couponer and has always been very frugal. She uses some of her down time at work for that (may as well I say, she's very diligent at her job....). I just do side gig work instead, I can earn more in the time it takes to find coupons. To each their own I say, just different ways of playing the same game.