When you’ve finished using your computer, you probably turn them off. Millions of people do this everyday, but the next morning you’ll re-open everything including applications and saved documents, reposition application windows, and get everything back the way you had it. Leaving the computer on for 24 hours-a-day is not a good solution.
Probably need to readjust the hibernate settings to conserver more battery life.
Source: How to Hibernate a Mac
MacBooks have some of the best battery life of all laptops: the 13“ MacBook Air is meant to last up to 12 hours but often lasts longer, while even the 15” MacBook Pro should stay running for at least nine hours as long as you aren’t doing anything too strenuous.
Currently only holds max at four hours. So it means it’s already degrade ?
Source: How to Conserve Battery Life on a MacBook
Time Machine works by backing up every file on your Mac—including things like applications and preferences—to an external hard drive. The only thing not backed up is the operating system. If anything happens to your Mac, you can go back to the copy stored in Time Machine.
Tip: Time Machine stores hourly backups for twenty-four hours, daily backups for a month and weekly backups indefinitely, limited only by the capacity of the storage being used.
Time to try it, after finally got a free external HD.
Source: Getting Started With Time Machine
When you’ve invested so much money in a new Mac, software can be an additional expense. In this tutorial, I’ll help you find free alternative programs that you can use, and some cheaper programs that are less known. I will also show you how to get more expensive programs for pennies. | Difficulty: Beginner; Length: Long; Tags: Applications, Mac, Freeware
Already use some of them. For the others, probably good for future reference.
Source: Discover the Best, and Free, Alternatives to Well-Known Mac Apps – Envato Tuts+ Computer Skills Tutorial