I get all sorts of snail mail advertising. The vast majority I don't look at. Around Christmas it gets ridiculous. But, sometimes I'll look at stuff like garden seed catalogs, I think that once you buy from some of these garden companies you get mail for life, but I like gardening so that is OK.
A couple months ago I rejoined the AAA, the American Automobile Association. They are persistent mailers, and I got another piece of mail from them a few days ago. I think it was labelled 'Second Notice' so I opened it, because I had just rejoined (and paid) and they shouldn't have needed to mail me.
I noticed they had a special offer, too.
So I email the AAA to make sure I am registered and mentioned the offer.
They wrote back, confirmed my registration, and told me they were sending me money so I could have the offer price.
I guess every once in a while, opening a piece of junk mail is worthwhile