There's nothing more frustrating than when you're rushing home to the sanctity of your own toilet and you're hamstrung by a seemingly simple snag like a car key that won't come out of the ignition.

Causes: This is often caused by a worn-out key, a damaged ignition cylinder, or even a steering wheel that has locked up. Repair: In many cases, the key can be recut or replaced, and if the ignition ...