A dogs job could be to pick up the sock that you dropped on the way to the washer.
His job could be to pick up his own toys.
Fetch you a bottle of Coke from the fridge.
Take the empty bottle to the recycle bin.
Open the fridge door while you clear the condiments from the evening meal.
Flick on a light switch.
Carrying an item for you like keys, gloves, purse, wallet small bag etc.
Or as Gala does for Carolina, make sure the ice making unit is in proper working order, 24 hours a day, 7 days a week.
(Yes we can have some fun in this thread too).
Using a caning backpack he could:
Carry your books to return to the library
Carry his poop bags and water bottles while you go on walks