While in Las Vegas this past week, I drove to the downtown area and noticed on all the casino parking lots a sign that read "free parking with validation," then a list of costs per hour. What exactly does the validation mean? I used the valet at Main Street Station instead.

Are there any good hypermiling possibilities when driving around Las Vegas in a rental car?

What's the best way to drive to Mt. Charleston and what hotels and restaurants are located on the mountain? I've also heard there’s a special brunch. If so, where is it served and what are the hours?

I've heard that Interstate 15 between southern California and Las Vegas will be closing soon. Is this correct? And if so, how are people supposed to drive from L.A. to Vegas?

How many casinos offer free shuttles to the airport and to other hotels and casinos?

What’s with the monorail? A cab driver told us no one’s riding it and the city is thinking about tearing it down.

Can you provide an update on the big new rental-car center that was supposed to open near the airport earlier this year?

I like to park in parking garages and take the stairs to the casino, instead of the elevator. Problem is, the elevators have big buttons for the casino level, while no signs on the stairs tell you which level the casino is on. How about a list of casino parking garages and the level you access the casinos from.

Are there any statistics on garage vs. valet parking on car thefts? I would prefer not being a statistic.

Can you tell me what are the roads in Las Vegas that divide street addresses by north, south, east, and west?