Mental_floss published a list of 12 unusual (and little known) holidays in March. It may already be too late to celebrate National Old Stuff Day which is March 2nd.
National Old Stuff Day
Sorry hoarders, this holiday is not about celebrating how much old stuff you have. Instead, National Old Stuff Day is about taking a moment to recognize the same old stuff you do every day, and think about how you can break old routines. Seize the day, because tomorrow’s just more of the same old, same old.