Nagger

Nagger assumes some level of responsibility, so attempts to 'cheat' and bypass the rest periods are discouraged as opposed to prevented. Features include allows you to use the computer for the designated time period, after which the screen is blocked and the rest period is started. Allows you to skip the rest period immediately or to close down the program, customize the timeout periods and screen background color, and take an early rest before the normal usage time has elapsed.