Days, months, and years reflect immutable natural periodicities over which humans have no control. Weeks, on the other hand, are cultural artifacts and subject to change. So here's my idea: Eliminate Wednesdays. The resulting 6 day week would have many advantages. Obviously, you'd get a 4-day workweek, plus reduced unemployment to make up for those lost hours, plus every month could have exactly 5 weeks for a uniform 30 days. That's 360 days. Then the day after Mardi Gras, 5 Ash Wednesdays in a row The extra day every 4 years could be named Dave. Because I thought of it.