"You can also feature-crawl if you want to (otherwise known as IFR: I follow roads, railways, rivers, ...) even if that means a longer route."
This is a good piece of advice - on my skills test I spent 5 minutes working out the route finally told the instructor what I was doing and he said "Yes all looks very good, now why dont you just follow that railway line it takes you straight there..."
Good luck anyway - the main thing is try to enjoy it - it's the best feeling when you pass.
Last piece of advice is dont worry if you mess something up half way through, just gather your thoughts and show good airmanship. Providing it wasnt dangerous there is very good chance that you will still get the pass. They are also looking to see how you handle things if something goes wrong..