[~The Jester~]

But another "old school" trick is to use a hazard flasher in the turn signal spot. Hazard flashers are a bit more "heavy duty" because they are designed to flash ALL the bulbs. When you put one in the turn signal slot, it only flashes 2, doesn't get worked nearly as hard, lasts 3 times as long, costs pennies extra, and you avoid the $7 for a mechanical flasher.