I think my Mrs has a job as a stock redistributor for TK Maxx that she hasn't told me about. That is the only way I can explain her bizarre behaviour of buying trolleys full of clothes in one shop and then taking it back a few days later to another branch.
I guess it could be if she was paying in cash - maybe she is also employed by a local drugs gang. You watch Good Girls as well?
I do non-grocery shopping online. Sometimes I'll go out with the Mrs. to spend time with her. She's not usually one of those obnoxious shoppers though thankfully. Sometimes I regret it, but not usually. I do most of the grocery shopping because I do most of the cooking. (If I want cooking done early enough that I still have time to go to the gym, I have to do it, I usually get home before she does... Also far more likely to be something healthy if I'm the one cooking)
It ended for me when the missus talked me into going shopping a while back. We ended up in a pet shop, with her saying things like ' ooh isn't this a nice dog collar' and ' ooh look, a cat litter tray'. At which point I say " right that's it, I'm ****ing off, WE HAVEN'T EVEN GOT A ****ING PET! . Never again.