Looking ahead at the calendar, it turns out that, what with April 15th falling on Holy Saturday* this year, Tax Day doesn't come around until the 18th. You know, the day when Paul Revere rides through San Francisco warning of a big earthquake.
So the 15th may be spent listening to Parsifal on the radio**. File your taxes the evening of the 18th, and have a leavened beer to celebrate.
* , Batman!
** Do they still do that?