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xkcd #2932: Driving PSA
(imgs.xkcd.com)
Alt text:
This PSA brought to you by several would-be assassins who tried to wave me in front of speeding cars in the last month and who will have to try harder next time.
to expand on number 5, drive the flow speed! If traffic is moving at 55, yeah that sucks but you're not going to make up more than a minute or so by speeding through them. And if traffic is doing 75, don't do 55 unless you're desperately low on gas. The savings from not maneuvering so much are huge. (Unless you're driving EVs, they have constant power instead of gears and RPMs. Which is why they should be far more clearly marked.)
This goes especially for EVs. Wind resistance really chews up your power budget once you're above 55mph or so. May as well run the heater with the windows down at that point.