Rather than driving to california yourself, taking the megabus is a bargain! Seriously $40 trip to a $25 trip is a no brainer.
I usually get a price $12 to $25 a trip within a week of booking. But if you book something in the next three months then it is possible for the $1 ticket.
The place isn't too hard to miss, but it is easy to mistake it for the mccarran car rental. Just look for the buses pulling in and it's not that hard to miss. The bus itself is really clean, BUT BEWARE BRING A JACKET! IT GETS SUPER COLD. They have outlets and wifi both of which I had no problems with. Wifi is surprisingly fast.
The bus operators I've were all great people too; cracking jokes in the beginning and end of the bus stop.
Pro tip: Arrive early as the bus leaves promptly. Dress like its winter.