Preparing for the written exam

My FAA written exam--officially called the Knowledge Test--is coming up.

I can schedule it whenever I want, just as long as it's before my practical test (aka checkride and oral exam).

It's been difficult to study lately, as I've had some pretty intense business trips that leave me exhausted at the end of every workday. But I'll need to buckle down soon.

I have found exams4pilots to be very useful as a study aid. All the current FAA written exam questions (a random 60 of which will be on my test) are available. I am consistently getting 90% or better, but I really want to shoot for 100.