My grand daughters think baking at Grandma's is a huge treat, they love taking their creations home as presents for Mum and Dad. Now that they're a bit older they have started giving a running commentary on what they're doing, as if they were presenting a cookery programme on TV, which is hilarious. Another big treat is being allowed to play outside in the rain! Or get their clothes soaking wet running through the sprinkler. We put money into their money boxes intermittently, it's also a big treat to count it to see if they have enough to buy something they need/want. Then we help them find it on the Internet and they dutifully pay up. The big birthday treat is trip to ToysRus. We get a trolley, and the birthday girl is able to put in anything they want. But as soon as there are three items in the trolley they have to put something back if they choose something else (sorry store staff!). The non birthday one can choose one small treat, same rule applies. This was a risky strategy I know, and means I have to spend up to two hours trailing round behind them, but I've never had a huge bill, one year my 10 year old GD eventually chose a hula hoop, a squishy ball and a model tiger - less than £10!