> After years of trying various methods, I broke this habit by pitting my impatience against my laziness. I decoupled the action and the neurological reward by setting up a simple 30-second delay I had to wait through, in which I couldn't do anything else, before any new page or chat client would load (and only allowed one to run at once). The urge to check all those sites magically vanished--and my 'productive' computer use was unaffected.
>At various times, I thought of doing it with an X modification, Firefox extension, a Chrome add-on, an irssi script, etc—but none of them worked too well (or involved a lot of sustained undistracted effort, which was sort of a Catch-22). Then I hit on a much simpler solution:
>I made it a rule that as soon as I finished any task, or got bored with it, I had to power off my computer.