3 most important tests for a new MacBook Pro?

What are the 3 most important tests that one should do regularly on a fine machine like the Macbook Pro?
thanks a lot!

But in the spirt of tests you do want to use the disk utility to repair/verify the permissions.
I do this prior to installing anything and after...
you know, you really don't need to repair permissions anymore, unless you experience problems. Even after applying an update from apple, its not needed. At this stage of the OS, its more of a myth that you need to repair permissions.
This is but one link Macworld
Message was edited by: Michael Flynn

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