No, this day doesn't really mean anything, other than the fact that if you write a check, you'll be making a lot of vertical marks.
But don't say that to fans of annoyingly loud pants, who will be celebrating Corduroy Appreciation Day (the date resembles the design of those pants, I suppose) or these weirdos who were trying to do something weird in the pyramids.
Most importantly, though, some have called this Nigel Tufnel Day, celebrating the famed guitarist for Spinal Tap. And that's why everyone should watch this video.