@Maydrock: That's a really good example!
Another popular queue tactic involves Vassalage and Theocracy -- which are both expensive Military civics.
During the turns you're running peacetime civics (for example, Bureaucracy & Pacifism), build a Trebuchet to within 1 turn of completion.
Then queue a Knight above the Trebuchet and build it to within 1 turn.
Then queue a Maceman above the Knight and build it to within 1 turn.
Then queue a Pikeman above the Maceman and build it to within 1 turn.
Then queue a Longbowman above the Pikeman and build it to within 1 turn.
So now you have 5 military units all within 1 turn of completion. (Only your best production centers will be able to que this many units ... lesser production centers may only get 3 before your hammers begin decaying and need to be "refreshed".)
Switch to Vassalage & Theocracy.
Finish all 5 units over the next 5 turns. (At this point, you could actually switch out of Vassalage or Theocracy if you needed to.)
This type of tactic has a few advantages. It minimizes the amount of units you're paying for until you actually need and intend to use them. It spikes your power graph too sharply for your opponents to react to. And, it minimizes the number of turns necessary for you to actually run your Wartime civics. A side-effect of this speed is also that your war is likely to end sooner.
-- my 2
