A few days ago I found out that my CISSP exam voucher expires on Oct 30. I had only two possibilities - to let it be or at least to give it a try. I chose the second option. I had 4 days to prepare (no days-off at work possible). My preparation consisted of:
1. Watching the Cybrary CBT videos (free) - 2 days
2. Bought the Kindle edition of the Sybex's - The CISSP Official Study Guide 7th Edition (paper version would not arrived on time

) - money well spent
3. Did one 250-question quiz at Skillport (morning) and reading the Sybex's book the rest of the day till midnight.
Today I got up at 4:30 am, skimmed through the Sunflower notes and drove 2 hours to the Test centre.
The test started at 9 am, took 2 bathroom breaks and finished at 11:10am with anticipation of the results. Thanks God I passed. The administrator told me my time is their CISSP record

A few remarks for conclusion:
- allow more time to study as I did to avoid the stress
- buy the NEW book - can not stress it more!!! - read the cloud and engineering topics thoroughly !!!
- do not dive too deeply and understand the underlying principles
Good luck to all!
Michal