Also....if you have children that aren't too keen on eating vegetables, try to grow some, they will be way more likely to try it, if they help with the whole process. My two kids both ate lettuce and fresh spinach right off the plant, I couldn't believe it, so I had to take a picture!
We cleaned our fresh picked greens by placing in a bowl and filling with water. Stir leaves around, let the dirt settle at the bottom. Scoop leaves out and place into a colander, drain and rinse the bowl, and repeat until there is no dirt in the bottom of the bowl. It took us 3 times.
Drew and Emma enjoyed swishing the leaves around in the water.
We dried our leaves on napkins, and after soaking up the water we placed leaves in a gallon zip-lock bag. I might have to look into getting a salad spinner :)