This mini calender is amazing, I am going to put it into my wallet even thought I can use my iPhone to do the same thing. But it is an amazing idea and I wish that all calenders include this on every page. Wouldn’t have to switch to another page ever.

Instructions are simple, click on the day in the middle and then go up or down depending on which month you want to know the day for. The color coding tells you how many days are in a month.

More information here.