I've generally been doing this to great effect... The most inefficient drive I've been on got me 184Wh/km and that was me hammering the accelerator at almost every light.Regenerative braking. Prepare well ahead to slow down. Ignore the people up your arse who are getting annoyed because you slow down too early. And let the car slow down until the very last moment, using the brakes as little as possible.
And after that, I always make sure that when accelerating, the black bar showing power usage, under the speedo never exceed 2cm to the right.
Most of my daily commutes I do around 110Wh/km