Pre flight planning. But don't get locked into a mind set. Every time I am in Frankfurt I study 2 of the (16+) sids. It never fails I get one I have not tabbed or looked at. So I taxi slow. I go head down other guy taxis, then visa versa.
I am not ashamed to say: not ready. take the penalty box, or get re sequenced.
I go when I am positive I am all dialed up. I go. I have never tripped a noise sensor. ATC at JFK and EDAF have never " needed to help me" with a turn now at Canarsey etc.
My favorite is last minute changes. Lovely on a star in the weather.