Are you making something?
This is an oldie (15 years already), but I think the idea might be useful, seeing how we find ourselves with ever decreasing attention spans and bombarded by distractions:
Simple but bold: Only use your computer for work. Real work. The work of making something.
(…)
Now, when you pick up the iPad, you can say to yourself, “break time.” And if you find yourself taking a lot of that break time, you’ve just learned something important.
(Found via digging through the archives of an old blog of mine)