Mainstreet.com has put together a slide show of the most caffeinated “drinks” available on the market today. The really potent ones aren’t really made for drinking — they’re actually just liquid that you add to a regular drink in order to make it more caffeine-rich. The most potent one allegedly comes in a syringe-looking thing — because emptying something that looks like a syringe into a drink isn’t going to raise any eyebrows at work… [More]