I would rent and exotic car like a lambo or something and drive it off the lot.  

Start my own little Cannon Ball run and hit Route 66 or something all the way to Vegas as FAST as I can.  Try to hit 200 MPH.

Get in Vegas and take a loan on the lambo when I pull up or try.

Hit the tables and loose it all.  Take the elevator to the top floor as I am hitting the 23rd hour and wait and enjoy what I remember of my life. At 23:59:50 jump off,  that will give me a 10 second thrill jump of my last life to enjoy the flashbacks.

Well not that I thought it out or anyhting but this was the start of a screen play I was working on a bit ago.

----

Wife asked me one day I would do if I found out I had 6 months left to live.  She said she would do anyhting in her power to get me my 69 corvette to enjoy before I died.  That is what started it.

P.S.  The words stated above are for entertainment purposes and should not be copied or used without the sole permission of the author

Lane McConnell