Can't remember what record sleeve this was in, but in it it was! A Reader's Digest Record Club brochure. Were you in any music clubs?
Yes, it really is that yellow.
Descriptions of all the nondescriptness.
I don't have personal memories of actual record clubs, as I was very young when they were already phasing them out in favor of cassettes, but my mother did get some of my early Weird Al and Bill Cosby cassettes through Columbia House in the mid-80s. I still have stamps from VHS clubs, though, and even used them on recordings I'd make off TV.
I would go on to use similar cards myself when joining CD clubs. I was with Columbia House more than once, BMG at least once, and some other club I can't remember. (CDHQ?) Kept my membership going until 2000 or so, I guess. As long as you stayed on top of things and made sure they weren't making mistakes, it was definitely worth it.