Car Memory Maintainer

You know how, when you get your car back from the shop, you have to reset your radio and clock and everything else you'd preset?

A pain in the butt, isn't it?

Well, guess what — somebody decided it didn't have to be that way and invented this wonderful hack to avoid having to go through the aggravation of resetting everything.

From the website:

Maintain Your Car's Memory

You won't have to reset your car's digital clock ever again

Before you disconnect your car's battery, simply plug in our Memory Maintainer to hold important functions like your clock setting, radio station presets, stereo tone adjustments, and engine computer diagnostics.

Just plug it into your cigarette lighter.

$15.95 here (battery included).

Genius.