Grafish Design has put together a most remarkable calendar for 2010. It’s the size of a credit card and includes the entire year. At first it might look a bit confusing, but it isn’t. According to Grafish’s site, you operate it by choosing the day you want to know and then drawing a line with your finger from the day chosen to the month you want. As for the different colors, green is for months with 31 days, orange for those with 30 and pink for 28. If you’d like to print some copies, follow this link to Grafish Design.
Genial idea and this enter helped me a lot in my college assignement. Say thank you you for your tip.