
Reusing calendars from previous years in not only frugal, it also makes you a big nerd. For 2010, you can use any calendar from 1909, 1915, 1926, 1937, 1943, 1954, 1965, 1971, 1982, 1993, and 1999. Conversely, your 2009 calendar will be useful again in 2015, 2026, 2037, 2043, 2054, 2065, 2071, 2082, 2093, and [...]