Sourdough Starter

My old starter got thrown out a while back when the fridge got cleaned, but that's ok, because I was mad at it. Now that I think I know a little bit more about Sourdough Bread making, I'm getting a new starter going. If you want to start your own Sourdough colony, here's how I am doing it. I've put about 2 cups of whole wheat flour and 2 cups of warm water in a glass jar, and I'm letting it sit for 24 hours on top the fridge (a warm place), then I'm going to dump out half, and add half again to feed it. I'll do this three days in a row or until it gets sour and bubbly. Then, when I go to use it, I'll use just part of it to make my "sponge", which is just a big batch of sour batter.