Extreme Couponing ?!?

So we just watched the new show "Extreme Couponing" on TLC and it had me thinking that maybe I wanted to start doing that... although I don't have the space to store what these people have, but it would be a good way to donate to the local food pantry.  SOOOOOOOO, does anyone have any tips or good sites that they can direct me to so I can get started with the savings????  I promise to share what I learn along the way!

Thanks!