My kids are 1 and 3 so I have a short list
DS3y:
1 put all his own laundry away,
2.clean up after self,
3. put dishes on counter after meals.
DD1y:
1. clean up after self,
2. bring laundry to her room for me to refold and put in drawers.
We clean up toys twice a day usually, once before lunch and once before dinner, so they both share in that.
They also help with any chore that I am doing if they are interested, or if I really need it. (this part is long, but I figure it might help to know what on erth a 1 year old can do to help, never know till you try it.)
Laundry they take the clean basket to the living room, and empty the lint trap, (then bring it back and stick it in upside down and empty for mom or dad to fix
.) also DD will 'help' bring me the laundry and DS will help fold small shirts, pants and washclothes, still working on hand towels.
Dishes they put away the ones they can reach if it is convenient (sometimes I do it at lunchtinme and they should be eating)
Vacuuming they move the toys out of my way and the tables or chairs as needed, plus pick up toys before vacuuming. DS usually takes a turn trying but since my vacuum is basicaly shot it doesn't do much good.
Cleaning kitchen, help put dishes in dishwasher, for me to rearange later
. wipe table, for me to 'touch up later' bring dishes to counter (or mommy DD is too short) put away stuff tey can rech int he cuboard, or bring it to me if they can't.
Cooking, and meals, DS gets the stuff out of the cuboard he can reach and the milk or wahtever in the fridge, he also helps stir so we use DEEP bowls!
Groceries, they both can carry in light stuff, less than a pound and not to weirdly shapped, somehow it must be carriable in one hand, cause the other one is used to get up our small front stoop. Makes for some interesting trips by DH nad I , trying to find and save appropriate stuff for a DS who will be rather disapointed without. (DD doesn't seem to mind much)
Generally my goal, in having them help, is the idea that we should all share in the work, (and to keep them doing what I don't mind rather than being counterproductive) but my share seems to be a lot bigger than theirs, 'course I am a lot bigger than them!