GeekAlarm!   
by Peacekeeper Enterprises, LLC.   

GeekAlarm! is a unique way for you to keep track of when you should take a break while using your computer. By taking breaks you can increase your productivity, reduce eye strain, and allay fatigue. GeekAlarm! has varying degrees of break enforcement including passive, medium, and aggressive enforcement. This helpful utility is a must have for anyone that uses a computer for long periods of time.