Just for posterity's sake because this is a Dollar at MCO thread (and because I rent from Dollar there weekly) :
- Each terminal (A and B) has it's own pickup and drop-of locations; it's ok to drop of to the other, not to pick up.
- Prices online change like crazy; lots of $12-18 daily rates; so check early and often and modify those reservations. Sometimes the lowest thing you can get is $30.
- Express is a must. But they are open until 11 PM or so, so after that it is the counter
- They do not have much economy, so if you get an Express car on an economy reservation it will be upgraded (I got a Kia Optima last week)
- They are full or Crown Vics. And most of them have 30K miles or more. So if you chose "compact or better" you WILL get a Crown Vic.
- Decline the toll thing and this is one airport that does not pay to prefill the tank, unless you are planning to drive 300 miles or more. There is a Chevron station right before the toll road on the right side with decently priced gas.
- Last but not least: check your car before you drive for dings. Orlando parking spaces are tiny and most Dollar cars are dinged...