In talking to people about keyless door entry systems I tell people that when my Wife and I would go out in crappy weather I would go to the drivers door and my Wife to the passengers door.
We would both be out in the weather while I unlocked my door with the key, got in the car and the little Woman would still be out in the weather until I started the car, found a good radio station, and then unlocked her door for her. JK:D
Seriously though, I thought it might be worth looking into a keyless remote door lock setup and I ended up with this.
DNA DL-T4-2B-BK Black Door Power Lock Conversion Kit w/ Remote | eBay
I didn't expect much for around 20 bucks, but figured for that much I could give it a try and see how it worked out.
Now two years or more later this thing has worked flawless, and it is SOOO nice to just touch the button and lock or unlock both doors.