My daughter begged to start helping in the kitchen a lot younger than my sister's kids did. I didn't see anything wrong with giving her a few *totally supervised* chores in the kitchen (of course never anything involving a hot stove or a knife!)
Other early chores we set into motion were keeping her own toys picked up, folding "easy" laundry like the wash cloths and towels, and even a little dusting when she asked.
That's the thing... most of the early chores I gave her were things she *asked* to do... never anything that was me initiating at first. I find that interesting. I guess I shouldn't allow myself to think that would continue into the teen years, eh?