I just got my MacBook repaired with a new logic board and other components through Apple's Depot repair center. The previous logic board lasted 4 years, but I thought it would last longer considering the price I paid for the computer. I'm not sure if this could have contributed to the failure, but about 6 months ago, I stopped turning off my computer and just shut the lid. And it was on for at least 8 hours a day. Anyway I'm looking for tips to have my new logic board last a long time? Like what I should do.