Wren - Offset your carbon footprint by saving rainforests
Notepad++ - A free source code editor which supports several programming languages running under the MS Windows environment.
Website Carbon Calculator - Find out the how much CO2 your website emits
Stretch Reminder - App that reminds you to stretch
Trip to Carbon - A carbon footprint calculation API for travel.
Daily Yoga - 50+ yoga classes, 400+ workout poses, w/ HD video and music