We sort of inherited our server room from the previous occupants so it's a lot bigger than it needs to be. This means when the bottles of champagne and advent calendars are stored in there ready for December there's plenty of cupboard space for them near the door. Which is well away from the racking for the spares and build PCs which are also well away from the server racks and switches.
Best thing is, because of who the previous occupants were, the air con unit in the server room is isolated from the rest of the air conditioning. Bit chilly in there right now, but I'm sure it'll be lovely next summer ;)
Biting the hand that feeds IT
