The sunroof button on my Accord. Because- S2000.

 

I declare this one "the button of the year".

Didn't much in the first 6 mo. I was using my remote fob to lock the car anyway.

Now with the keyless entry, there is less need to pull out that key fob.

So this button is just what is needed. Using it you just lock the car from the outside. Of course I could use the one in the door but for whatever reason, it is less intuitive.