How about those toggle keys that can really screw you up until you figure out what's wrong. They are:
Caps Lock - This has to be the number one offender, how many times during the day is it set wrong and you have to go back and re-type a sentence or two because you accidently pressed it?
Num Lock - Right up there with Caps Lock. Type in a few numbers and all of a sudden you’re at line 65536 and you don't know how you got there.
Insert - Very annoying when you look up at the screen to find out you've just typed over some very important information. And there is no little green light to tell you it’s turned on.
Scroll Lock - Doesn't happen very often, but very annoying when it does. What’s it for anyway?
My solution? I'd like a keyboard where all four of those little buggers were up in the corner out of the way where they couldn't be toggled by accident. Like how about where those little green lights are?
If such a keyboard is on the market I'd like to have one.