After checking the section on rental car deals at Mousesavers I found a great suggestion that resulted in a great car rental deal.
The suggestion was to check for deals through the Travel page of a Club Store website like Costco or Sam's Club for bigger savings than the corporate / discount code ID numbers you'll usually find on most travel advice sites.
I went to the Costco Travel web site and found an Alamo Rental Car coupon code for 40% off. I was able to combine that with a coupon for an additional $25 off a 3 day or longer rental.
I booked a mid-size car at Alamo from Friday Aug 27 through Monday, Aug 30 for $65 total including taxes, vehicle license recovery fees, etc. I'm picking it up from the Downtown Disney Alamo by the AMC Theaters and dropping it off at LAX. This allows me to not only have a car for the last three days of my trip but it also allows me to skip paying $16-$19 per person to take a shuttle or bus to LAX for our flight home.
And if the Alamo booking confirmation and customer service rep I talked with can be believed I will be able to use my debit card without any deposit since I am flying in with proof of a round trip plane ticket. (Yes I printed out my confirmation and the response from Alamo customer service just in case this is too good to be true.) I'm used to having to hold the usual $300-$400 debit card deposit with most car rental places so this could be a nice change.
The funny thing is that I was thinking of renting a car with this deal for my whole 5 day trip from the Alamo location at John Wayne / Orange County / Santa Ana airport. That would have allowed us to skip paying for a shuttle or bus from the airport to the hotel but that rental would have cost over $400!
Just thought I'd share this pretty cool deal. If I have a good experience with this chances are good I'll be using the Downtown Disney Alamo often on future trips.