AutoClicker

From Valis Enterprises:

Easy to use automatic mouse click program. This version adds the "return" feature that returns your mouse to it's position right after it clicks on the spot that you have specified, and in the time increment you have specified down to the second. this turns this automated click program from a "set and leave" the comp program, to one that allows you to continue working normally on your computer while this program continues to click on another window and do it's work for you. features include options to right click instead of left click, double click or single, number of clicks to make before stopping, and to click back on the original spot where the cursor was before tha automated click. this returns focus to the window you were working on previously.
Shareware version is limited to 50 consecutive clicks, full version removes this limitation, and allows you to submit suggestions and comments on improving the product. planned updates include "macro" function to make multiple clicks in different areas in sequence, as well as different levels of scheduling.