As a perk for renting a vehicle for five-plus consecutive days, Avis will send you off with a voucher good for a free weekend-long car rental. Visitors to Avis.com can register between now and June 25, 2006 for up to three free weekends, assuming your Avis Wizard number is up to date.

The release doesn't talk much about whether you're eligible for just the economy cars or whether the free rentals will include the premium vehicles, like convertibles and big sedans.