EARLY DOORS:There are two, related, schools of thought on this one: first, it could refer to the time before a paid event (as in showbiz - "the early door looks good" meaning there's a crowd lined up waiting to pay their cover charge well before the doors are scheduled to open, so chances are good of a heavy turnout and a profitable take at the door.Second, and more likely, the phrase originated in London in the 60s. The doors are pub doors and the phrase refers to the quiet time in pubs just after the doors open, but before the main rush - around 5.30ish. Of course that was in the days that pubs waited until late afternoon to open.CLOSE OF PLAY:This term originates from cricket. It means the end of the scheduled day's play, as called by the umpire. Of course, as it's evolved in business terms (similar to Close of Business), it means roughly "before I come in tomorrow".