I will be arriving at LAX at 11:00 AM on Sept. 30, and leaving 10:00 AM on Oct. 1. So, I have 23 hours lay over in L.A. We (two people) plan to visit universal studio and back in the night in LAX so we do not have to spend in a hotel. How do we get to Universal studio and return with the most economical way? Since in LAX have no luggage storage I will bring carry on baggage but this is not practical. Any suggestion regarding our carry on luggage? Is there any car rental onsite NOT outside? Thank you.