Great ideas! Our 19 mo old loves to "wash" things - with a kleenex, dry washcloth, etc. She wipes down tables, floors, toys, the refrigerator. Mind you, it's not really a done deal when she's finished, but I always tell her thank you and what a big help she is. Later when she's asleep I'll finish what she started so she doesn't think I'm doing it over and her work didn't count. When she's a little older, I'll help her learn how to do it better.
She also loves to put dishes in the dishwasher and take them out. To keep it safe, I only let her put her baby utensils in and spoons.
She also likes to take laundry in and out of the basket. So when it's clean, I let her hand me all the clothes out of the basket. Then I make sure I have some dirty clothes she can put back in (otherwise, the clean ones end up back in there).
She also loves to stir, and see what's happening when I'm cooking. We have a step stool in the kitchen and she stands on it in front of me and stirs the eggs/batter whatever needs to be stirred. She also likes to help pour ingredients in. I'll measure the flour into the measuring cup, and then she pours it into the bowl. For the cooking part, I don't let her by the stove, but when there's something in the oven, I turn on the light so she can see what's inside.
For outdoor chores, we have a gum tree which is great for shade, but has those annoying pokey, ball things that get everywhere. So when we're raking, she helps pick those up and put them in the trash bag.
Good luck!