Sam has been tidying his toys away since he could walk - although admittedly the novelty has well worn off and we have to do really persuade him to do it.
He puts the clothes in the washing machine.
He brings me the cats bowls and I fill them and he brings the food to them (shouting "tea time cats" while doing so

)
I leave the grocery shopping in the hall and he carrys/drags it into the kitchen for me (I try to grab the more delicate bags myself!)
I really want him to have lots of appropriate wee jobs when he gets older to 'earn' his pocket money. DH never did anything like that and it shows!! Think it makes life easier in the end being brought up knowing life isn't all play and being waited on!