The IBM mouse that I use at my work place is hard to click. My fingers would get tired at the end of the day with all the clicking. So I requested for a small program or script that will click whenever ‘Ctrl’ key is pressed. jgpaiva over at DonationCoder wrote a 3 line .ahk file that does this.

Here are the steps:

1. Install Auto Hot Key.
2. Save the following as LeftClick.ahk:

   Ctrl::  send,{lbutton}  return

3. Double click on the new .ahk file.

As long as the above ahk is running, you can simply press the control key instead of clicking the mouse.

If want this with little more functionality, check out this thread.