This is why dogs are man's best friend.

Watch as this pup, named Millie, helps her owners carry in groceries from the car after a healthy-looking shopping trip.

Millie is definitely on her game, shuttling back and forth from the car to the house, while giving her owners some relief from hauling heavy bags. We're not sure why those other two dogs haven't joined in and done their part. With Millie doing her schtick, you'd think they want to earn their keep, too.

Maybe those other dogs can start doing the laundry or unloading the dishwasher. You can bet the owners would appreciate the help.