Fox Rent-a-Cars is not located in the rental car faclilty at McCarran Airport, but to reach it you do take the shuttle to the rental car facility and walk outside to the taxi stand out front, where you catch the shuttle to Fox Rental. Their service could save you a good deal of money over the deals the agencies in the rental car facility offer. Fox Rent-a-Cars is very close to the South Point Casino.
In tough times, it's good to keep budget-minded things on your travel agenda. There's lots of great things to walk around and see in Las Vegas for free. If you're looking to save some money and have some fun, try a reasonably priced show instead of gambling. You're almost sure to spend less money than you would sitting at a table or slot machine for a couple or hours and the bonus is that you get to take home a great memory. Think back, how great 'moments' in your life can you think of while you were gambling? A few suggestions for budget-minded shows are a daytime show, Mac King comedy and magic show at Harrahs, and get your night-time laughs at singing impressionist Larry G Jones' show at the Royal Resort Hotel on Convention Center Drive just behind the Encore. Or take the Deuce to Downtown and experience the Freemont Street Experience - where there's lots of free professional-grade entertainment spread out over a 4-block area beneath a gigantic "jumbotron" which features a free sound and light show each hour from 8 to midnight. There on any given night you'll find such things as live bands, concert pianists, mini-motorbike riders within a metal sphere, and street artists possessing incredible skills.
There's also a number of websites that have free coupons for tons of shows and restaurants in Las Vegas. Check them out to save some real dough.