hi. i've had my macbook pro for about two weeks. i calibrated it already. i didn't buy it from the apple store, i bought it from another retailer (i got a good deal with a printer and the like), so i wasn't able to ask how to charge it correctly. the first day i got it i used it until the battery drained completely and it went into sleep mode. i then charged it up to 100%, unplugged it, and ran it off the battery. i did the same the next day. from then on though, i've been running it to a low percentage and then charging up to 100%. i tend to run it off the battery as i move around the house, however, i tend to use it in my bedroom mostly. i've already read the battery faq on the forum, but i don't know whether the way i charge my macbook (13") is right. i mean, should i have it plugged in more often when am at home, or should i use it on the battery more so? when is a good percentage to charge my macbook? on a higher percentage or what? if somebody could give me step by step instructions exactly what to do, i would be very grateful. i want to make sure i get the most out of the battery before having to replace it. thank you.