Pearson Vue -- London, UK (London Holborn)

Parking facility : None AKA in central London? Bwahahahaha!
Invigilator Reviews : Polite, efficient - did not offer to test pen ;)
Environment : Quiet, desk approx 1.5m square with high dividers. No ear plugs provided but headphones are present (I guess for tests that need them)
Additional Info : Test scratch pad was not like the one shown here. It was in fact laminated white A4 sheets with a heavy black grid sectioned into rectangles about 10mm x 7mm. I forgot to count how many pages were provided but there were at least 10 sides which was more than adequate.

Debrief Link : http://gmatclub.com/forum/740-q49-v42-awa-98204.html

Do's & Don't s : Don't change your routine based on what worked for other people.