The other thing I did was to keep printing off the MetOffice reports at
<a href="http://www.met-office.gov.uk/aviation/" target="_blank">http://www.met-office.gov.uk/aviation/</a>
to see if I could make sense of them. When I could read them instinctively, I felt more comfortable taking the exam (not that I did all that well at it, but a pass is a pass!)
You have to register to get access, but it is worthwhile. By midnight, you can usually tell if you are going to fly tomorrow morning.
One word of warning, though, if you use the Met Office web site for real. My browser keeps recalling old pages when I access a page, so if I don't remember to check the date carefully and press "refresh", I can spend a while planning based on the weather five days ago. Then I am surprised when I look out of the window.
CAVOK