I carry one purse mostly these days, and when I go for the food shop, always strap my bag handles in the cart seat kiddie strap, so it stays where it is

and when placing groceries into car, always put my bag in car first, then unload food cart, thieves can be lurking in parking lots preying on unsuspecting women leaving their bags in the cart as they unload (yes it does happen).
Brilliant on the music and your BFF, how fun...
Good luck next week with area manager....
C