I did the hike back in 2000 pre-cable permit (I think). It was sold as a team building exercise by my manager. We would do a simple hike where water and a few power bars were all that's required. We had one day to get up and back which ended up being a 12 hour day of hiking.
By the time we got to the top of the cables I was comfortable with the idea of death. In fact, it seemed like an option far better than walking back. When I arrived back to the bus which took us to camp I actually had sweatcicles hanging from my eyebrows. Literally stalactites hanging from my eyebrows which scared a little girl from her seat at the front of the bus clear to the back.
For myself and the people I went with its still remembered as the most miserable experience ever. My recommendation would be Sutter Street Steak House. For the money you will spend on the Half Dome hike you can get a great meal, nice scotch and a memory you won't long to forget.
Love this post!