I think its safe to say everyone today suffers ADD to some degree or another. I'm finding this out for myself when I write under deadline (as I am right now

) Usually of course the terror of the deadline focuses my mind enough to pull me through. And occasionally the sheer joy of writing focuses my mind and pulls me through in other situations.
But I'm trying to be someone who doesnt rely on terror or pleasure so much to be a productive writer. I'd like to be more even-keeled.
What I'm discovering is that in order to do that I will need to be able to focus-on-demand. Of course this is something that soft lazy americans just arent that used to doing, quite honestly (and I'm very much a soft lazy american, lol).
So for now I'm trying a few 'tricks' to help me focus on any task at hand, for 1 hour at a time. Whether thats language learning and practice, or straight writing, or whatever. I bought one of these little very neat
Polder timers (its useful in many ways, and inexpensive. And 160 positive reviews at amazon speaks for itself). I use it to time 1-hour bursts of focused writing. Then take a 15 minute break to stretch, maybe a snack or some situps, and then repeat that (I'd like to do an honest days work each day, whcih for me means 8 hours of being productive at my desk each day).
The timer-trick sort of works (at least until I tire of it, I guess).
What tricks do you guys use to focus your mind when your mind is distracted and you need to get real work done?