The biggest nightmare that you could think of if you are in a rush should definitely include losing, breaking or locking your car keys in the car. This could include snapping it inside the lock or them just falling out of your pocket on the way to or back from work. Locksmiths can help you either cut new keys, get into the car where they are locked, or make completely new replacement keys. This does not just include the more traditional metal car keys; they also now replace or reprogram immobilizer keys. The more modern the cars, the more likely this service will be needed. Do you want to learn more? Visit Key Replacement.
Further problems include more than breaking a key in the car or simply losing it. Sometimes a much worse situation can happen where a key can become snapped in the ignition. In this instance it could be worth ringing both the car manufacturer and a specialist locksmith. Make sure you get quotes from both and then ring back to see if they can improve on that cost. They want your custom, so more than often enough they will lower the initial quote to some extent. Locksmiths are still qualified however, and they normally do it for much cheaper than the car manufacturers.
You may not have broken a key in a lock or the ignition; you may have just lost or dropped them somewhere. There is absolutely no point in ringing your car dealer, as the car will need to go into a certified official garage. The car will be out of action for at least a week until a replacement key is sent. If you call specialized locksmiths, they can usually arrive within the hour and replace the key with a temporary solution. This way you can get off to work within no time at all, without having to worry.