I know we all have and love our desktop planetarium, and Android, iPhone, and Windows Phone apps. Bit sometimes a "paper" app is nice to have too. Help yourself to the 2013 Moon Phase calendar suitable for posting on your office/observatory wall, refrigerator, etc. I gave these out at our last astronomy club meeting. Last year one of our members laminated it for use as a place mat!
Download here: http://newcastleobservatory.ca/node/153
Enjoy!
Happy Holidays
Michael