This past Friday we decided to powerwash our driveway and front walkway. It was like taking a gigantic eraser and wiping out the years of moss and mold on our concrete. It turned black moldy concrete to a nice clean creamy color. When it was done five hours later, it looked SO much better. I wish I had taken a before and after picture, but I didn't. Even Grandma Jo took a turn with the powerwasher (which is gas powered and NOISY, because Kent couldn't settle for a "wimpy" electric one). Grandma Jo did some major concrete square-footage, and some plants as well (See pic :-) Slowly our little "fixer-upper" is becoming a very nice place to live.