Re: July and August must Go!
"Not to mention the agony experienced by nomenclature pedants from 1st September until the end of the year."
July and August weren't additional months added in for Julius and Augustus, they were existing ones renamed for them. They were originally called Quintilis and Sextilis, which will just mean the nomenclature pedant hell will just be expanded by an additional two months. Unless we move them to the end, but then you end up with Hendecember and Dodecember, which is too many Decembers for my liking.
The Roman New Year was originally at the end of February, so March should be Month 1. If you do that, everything falls back into place and we avoid silly names. It's also why February has a variable length - originally much more variable. February had 28 days most years, and 23 days in others, when a 13th month of 23 days would be added immediately afterwards to account for the 368 day calendar length. When they corrected the calendar, February was the natural choice to soak up extra time again.