Okay, so lately I've been getting really distracted by the computer and I often neglect to do some things that I should be doing every day, such as getting exercise and studying. What I would like is a program that can keep me on task by essentially forcing me off the computer. Ideally, what I would like is a program that, at a scheduled time, grays out the screen and doesn't let me do anything. (It should in this case have some sort of "snooze" button that returns the screen to normal but grays it out again after 5 or 10 minutes so I can finish whatever I was doing.)
It doesn't have to work exactly like that, but what I want is essentially something that alerts me in a non-subtle way that I need to get off the computer. This should either run on a schedule that I can define, or after being on the computer for a certain amount of time.
I'm running 64-bit Windows 7.