Does anyone know of a way that you can redirect, reflect, bounce, etc.....a cell tower's signal.

Here is the scenario.....I have ZERO cell service at my house, but after a little experimentation I found that when I go out into the clearing in my back yard I can get a nice signal (4 bars actually). The difference.....no foliage, and I can just see a tower waaaaaaaaaaaaaay off in the distance. Is there a way I can aim that signal (at a 90 degree angle) towards the house?

I haven't tried anything yet, so all (serious) ideas are welcome.