Trying to give something back to the Community...
If you're planning on taking any Microsoft Certification Exam but not overly sure if you'll pass (I'm sure you will), then at the time you book your exam you have the option of paying the regular exam price +15%. By paying the extra you'll be able to have another try at the exam if you fail it first time round (so it's not free like it was before but still a good deal).
For more details see:
http://www.prometric.com/microsoft/Tech_Portfolio.htm?s=MSTPORT1
Read the complete post at http://wmug.co.uk/blogs/cliffs_blog/archive/2010/11/15/traincert-second-shot-is-back-until-30th-june-2011.aspx