How often should I charge MBP Retina 13 (mid 2014)?

Question

Hi,
I didn't find an accurate answer for this question over the Internet, so I think I need a specialist opinion. As all we know, MBP batteries are not easy removeable, thus we should care about them more. I work on MBP for whole days, thus sometimes I need to charge it even twice a day. Charging once a day is a standard for me.
My ordinary (daily) charging looks like that:
(I have fully charged MBP)
1. I work until the battery level decreases until about 8%.
2. I charge it to 100% and unplug it from the power source.
And I do this every day. Should change my charging customs and use a power supply instead more often (if yes, how often?) or not. I know how to care about the battery, about fully charge and discharge once a double week. Usually when working on a non-Mac notebook and I just removed the battery and used the power supply for whole day. Now it's obviously not possible becauses of loosing power cycles.
Please answer and thank you.

Answer 1

As Esquared said, it is not good to drain your battery down to 8%. You will wear it out quicker that way.
Leaving the charger plugged in permanently is not a good idea either. The 95% to 100% you mention is when you leave the charger plugged in and it will drop about 1 percentage point a day even when the computer is shut down until it reaches 95% and then start recharging up to 100%. This will keep your cycle count low but is not good for the battery in the long run as it need to "breathe" so to speak.
Seeing that you use your computer so much, you must expect the battery life to run out accordingly, so don't worry too much about cycle count. About once a month or every three weeks or so, unplug the charger and let the battery go down to 40 or 50 percent of charge remaining then plug it back in. This should keep your battery reasonably fit.