Lensman

As you probably know, many cities turn lights green for ambulances, fire engines, and cop cars. What you probably don't know is that many of the stop lights respond to flashing lights.

So try this, as you approach a red light, start flashing your headlights, to your amazement, the light will turn green for you. It doesn't work everywhere, but when it does, it's a thing a beauty.

Be sure to thank old Lensman for this amazing tip of the day.