How about a watch with an alarm?
You must have a wrist, and if you don't, I don't even want to know....

You know what would be neat, a little timer device one can put on the top center of your monitor, then when the timer went off a punching bag arm comes out and gets ya right in your forehead.....
That would sure bring ya back to the real world..... :clap
Boy I need to go to bed before I give any more advice........