MouseTool decreases your reliance on mouse buttons by automatically clicking them whenever you pause the mouse. Desktop items can be dragged and dropped without having to click. You can set the time delay, and the number of pixels the mouse can drift without clicking. Left-, right-, and double-clicks can be made on your keyboard by using hot-keys.
The last freeware version of this program is good enough and can be downloaded from here
Do you use this program? I usually use this at work in the evenings when my fingers get tired of all the typing through the day. I just move the mouse to where I wanna click and this program will click it for you.