As calos Mencia would say "those things happen to him CAUSE HE'S RETARDED!!"
Anyhow, Don't underestamate the value of having spares.
I got locked out of my car twice, 1st time I had to get the police to pop It for me the second time a maintenance guy at work opened It,
So that morning still In my work cloths I hit the hardware store and had three keys made one in my work wallet one in my everyday wallet and the last went on a key ring by Itself and ALWAYS went Into my front left pants pocket.

actually, my suggestion is to get a Ford, and make it one with the keypad on the outside. memorize the keycode. then it doesn't matter if you lock your keys in your car. in fact, i've locked mine in there on purpose just so i don't have to carry them around...

Once two of my friends (Roger, Frank) and I decided to stop in a semi-bad neighborhood in the middle of the night to drop some ballons in front of a friend of ours house.

I was driving, and we all got out of the car to go hunt down some rocks to weigh down our balloons.

It was about this time Roger said, "Hey, I'm gonna go get the bag from the car."

and I felt my pocket and said, "Oh God no."

and Roger approached the car and I said, "Oh no. Please no."

And then he turned to me and said, "hey, it's locked."

And I said... Well, a lot of things so gentleman says in the presence of ladies, so it was a good thing that only Roger and Frank were there.

But we spent a good long time going through Roger's cell phone and calling everyone until we found someone awake at two in the morning and willing to drive me to my house to get the spare key.

And by the time everything was settled the balloons hd lost enough of their helium that we didn't even need the bag of rocks anymore.

Or you could just leave the windows open...

That's what I do SarahK

It's great for when you go to the beach or somewhere you don't want to carry stuff!

That's actually a "feature" on the new Chevy Aveo; you cannot lock the driver's side door from the inside. When you close the door, it pops unlocked.

And there's no way to discourage this free "service."

You know, if you have a soft-top Jeep Wrangler, it doesn't matter if you lock yourself out. I know that I can get inside mine in about 30 seconds without using the key. (The back windows unzip from the outside.)

Of course, I hardly ever lock the doors anyways...

Brian - I've had Hondas that were like that, but you could shut the locked door and have it stay locked as long as you kept the door handle lifted while you shut the door.

I guess the theory being that you couldn't lock yourself out without doing it on purpose :-)

My Explorer that was stolen had the key pad on the outside. I loved that feature. (Tip on not getting it stolen--don't leave the keys and the bad guys in the car while you go in the store) Wish the Saturn had it. And so did my son the other night when he locked the keys inside. Note to self, get spare made.

Drive a Jeep Wrangler soft-top, and don't lock the doors.

/TJ
(Although I do carry a second set of car+house keys as well)