I'm kinda surprised no one has mentioned using a 1/4 or 1/2 CTO gel on the flash to match ambient colour temp. Obviously this only matters if you're shooting colour.
Every outdoor shot I shoot with the CTO on the strobe to avoid that flash in daylight look.
Really good point.
Another thing I find is that many times photos are printed too light to make sense. Even when balance of lighting and color are achieved in a dark scene, many times it gets printed as if it's nearly mid-day.
Mark Barendt, Beaverton, OR
"We do not see things the way they are. We see things the way we are." Ana´s Nin