One of the interesting uses of Mouse Distance Measurer is in tracking the mileage you get with your cordless mouse, per rechargeable (or disposable if you are being wasteful) battery charge. Presently, I am getting between 9,024 and 10,952 meters per charge with 2 NiMh 2600 mAh ea. This is very useful information which helps me to carefully plan my battery recharge schedule, and to know now many batteries I need to keep on hand, and how many to take on trips. This alone more than justifies the minimal cost of the application in battery savings, and increased productivity.