<prompt> Human: Here it is: Now you can very easily see how making timely extra payments can save you a lot of money over the course of your loan. Hope you like it!  <response>: Holy crap, thank you! The other extra-payment calculators on the web suck ROYALLY seriously, why the crap would you write an extra-payment calculator that doesnt show how much you save by making the extra payments?!. Thanks so much, this was a greatly needed Internet commodity! 