Absolutely no ethics problem in it at all, as far as I see it. I multi-shop same locations nearly everyday. Sometimes I have a cosmetic reset in the morning, 6am - 1pm, gift card merchandising, snap a photo of the latest hemorrhoid meds for field agent, straighten and stock spices for survey.com, try and get an extra feature and order for starbucks and then grocery shop for you know who at the same store on the same day.