The super shuttle of Vegas!
But cheaper. It is $7 from the airport to the strip, or $13 round trip. For $9, you can catch a ride all the way downtown. Way better than the $25 dollar cab ride.
It's also simple. Step outside where you will see a booth for shuttle service/ tickets. They will direct you to a curbside stop or a shuttle that is waiting and ready to go.
It is a group ride, but I have never had to wait more than 15-20 minutes, and you get a quick tour of the strip as you drop others off at their fantastic Vegas hotel destinations.
The shuttle will pick you up at a designated time, or you can call and arrange time later, when it's convenient to you.
It is quite convenient.
Some of the drivers are very informative. Some, not so much. But value for the money...for Vegas, quite cheap.