I worked for a national us clothing retailer that didn't require but encouraged their 'corporate' employees to spend time in the stores mostly doing reshelves/reracks, tidying the sales floor, etc. Mostly around holidays/sales.
I worked in software for them but 'close to the store' for a bunch of my time there, so I was often in a store somewhere and always would help out as I had time permitting. It was useful for me, it was maybe useful for some of the buyers, I'm not sure it was useful for anyone else.