Keep Macbook Pro Charged or Use Battery?

I'm confused on whether or not to keep my Macbook Pro charged or use the battery from 100% until it reaches 0% and charge it again. I've read other posts and websites and they say I should keep it charged. I know you have to calibrate it, but I'm still confused on how the battery usage works. I currently have 63 loadcycles.

"For proper maintenance of a lithium-based battery, it’s important to keep the electrons in it moving occasionally. Apple does not recommend leaving your portable plugged in all the time. An ideal use would be a commuter who uses her notebook on the train, then plugs it in at the office to charge. This keeps the battery juices flowing. If on the other hand, you use a desktop computer at work, and save a notebook for infrequent travel, Apple recommends charging and discharging its battery at least once per month. "
Read more here: http://www.apple.com/batteries/notebooks.html

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