Re-using calendars

Don't waste money on a new calendar for 2009 - re-use an old one. There are only 14 combination—including leap years—of months and days on the Gregorian calendar.
For 2009, you can use calendars salvaged from 1891, 1903, 1914, 1925, 1931, 1942, 1953, 1959, 1970, 1981, 1987 & 1998. And don't throw it out at the end of the year either - it will be useful in 2015, 2026, 2037, 2043...
Nice to think about it - if you can find 14 timeless designs that you really like, just make sure you write everything in pencil, white-out the holiday details and you'll never have to pick up a cute cats calendar again.

via Lifehacker