Here's a tip: don't try to be productive all the time. This leads to mediocre performance, which is generally a bad thing. Instead, give your 100% in everything you do, then when you're tired, RELAX! No articles. No small stuff for work. Don't do any of that. Instead, recharge your batteries for, say, tweny minutes, even taking a quick nap if you want to. Once you're feeling rested, again give it your 100%.

Wash, rinse and repeat, and suddenly you're two times as productive. :)