Nearly ready for the A&P exams

Hello.

I just completed the last of the three written exams for my
Airframe & Powerplant rating. So I no longer have an excuse
to put off the oral and practical test!

Any words of wisdom for how to best prepare for this test?
Also, should I go for both licenses in a single O&P session,
or study and test separately?

I am also wondering how the general knowledge questions
are handled. Are these included in the airframe O&P,
or are they split between the two O&P tests?

Thanks
-Mark