What are /r/RoyalBlueVI's favorite Products & Services?

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You can read about it here since my explanations aren't always the best: http://brainscale.net/dual-n-back

It's said to have the ability to increase IQ and other measures of intelligence. I'm not sure I believe that, but what I do know is that it's the only thing that has ever made my brain feel tired. Sort of like a brain workout.

I have noticed after doing it for a few weeks that words seem to flow better, but I can't say for certain whether or not it's related.

I find it fun though, in a weird monotonous sort of way.