The number one thing I've found to be effective in combatting this is sleep. I have to get 8 hours of uninterrupted, unmedicated sleep. 9 hours is even better. And I have to do it for a few nights in a row.

If I do anything at all that interferes with the quality of my sleep, I'm screwed, and The Stream will suck me in. Conversely, things that increase the quality of my sleep -- exercise, diet, not using gadgets after a certain hour -- all increase my ability to fight off Stream-induced distraction.

So that's my recommendation. YMMV.