There are great rates for Car Rentals in San Diego for 4 days beginning Feb.16th or 17th, but I need a car for 5 days 2/16/14-2/21/14). For 4 day rentals I see prices of $4.95 a day beginning either 2/16 or 2/17, but there are no good rates for a 5 day rental. 5 day rates are over $30./day. Is there a way I can hook up a 4 day & a 1 day rental(assuming I get the same rental company) and not have to return to the airport to return & pick up a new car? Any suggestions?