Parchment Paper a wonderful addition to my kitchen

I'm not a creative baker, but I do like to bake. Tonight I made a batch of chocolate chip and walnut cookies (recipe off the bag of chips) and a batch of sugar cookies (Better Homes and Gardens New Cookbook). Anyway, recently I started using parchment paper on my baking sheets and all I can say is WOW! I love using parchment paper, no greasing pans to start, clean up is crazy easy. and I can pull the parchment paper and cookies off the sheets on to the counter in no time... Where has this wonderful tool been all my life (ok that was a little too dramatic even for me)..