If it is your first time to Vegas, or you are finally able to see the sights after that business meeting, the best thing you can do the first day you arrive is to locate the nearest hotel with a qualified Concierge Department.  Most of the big ones -- MGM Grand, Venetian, Encore, Wynn, Mirage, Monte Carlo -- offer the free services of a Concierge.  Concierge are trained to find the best prices on dining, shows, tours and spas, and they can get you introduced to the host at your favorite nightclub.  And yes, it is FREE.

So do notwait until your last day . . . see a Concierge the minute you arrive, and you will not wander around wasting your precious time looking for things to do and places to go.