I was taught (by the lady at the Perscriptives counter) to use the foundation brush as follows.
Pour a dab of foundation on the back of your hand (using it like a painter's palette) - grab the brush with your free hand and dab it into the foundation and apply. Repeat if you need to apply more foundation.
This is easy and works for me.
I may try hottytoddy's method and see which one I like better.
