In honor of Earth Day tomorrow, several retailers & organizations are helping you celebrate being green while saving you some green.
Free tree from Lowes:
Lowes.com : Earth Day 2011
1 Million Available
Free coffee or tea at Starbucks:
Take your reusable mug to participating Starbucks and get a free fill-up!
Celebrate Earth Day, April 22 | Starbucks Coffee Company
Free entrance to all 394 National Parks:
U.S. National Park Service National Park Week