How often do I need to defragment my hard drive? What cleaners are OK to use on my Mac? Does it damage my laptop to use it on the road? How do I "repair my permissions" and should I be doing that? Is it OK to leave my Mac on all night? Should I exercise my laptop battery?

A lot of the "street knowledge" about good maintenance practice for the Macintosh is pure voodoo—and some of the rest of outdated information that, while it once was good, will now actually damage your Macintosh.

Example: if you're still running Norton Disk Utilities suite beyond OS X 10.3, you are actually inviting disk corruption!

Moral: Maintenance requirements on any computer platform change, and "best practices" is a moving target. Let us help you do right by your Macintosh.