The last typo of the week is everday for everyday. Newly identified, it will be added to the Highest Probability list in the next compilation. One of those insidious little errors that is so easy to overlook, everday can even creep into titles. Like the Good Housekeeping everday cookbook, which resided in this defender's catalog until this morning.
This word has been spelled with just one "n" many times, historically and during the recent Y2K spate of publishing. I've even seen a current (but less than authoritative) dictionary spell it with one"n" with no explanation and no "millennium."
So, this is one of the times when you really want to consult the work before you change the spelling.