If the security lines by the baggage claim area are too long and you don't have many bags, someone usually comes by and takes you to the employee checkpoint instead. :-)
The B Gates food court has an indoor smoking lounge right next to it, forcing diners to have exposure to the awful, second smoke sneaking in from the lounge. Take your meal to your gate.
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If you're stuck in small airplane part of concourse A for a while, take the escalators towards B. There are far better amenities & quiet in the Int'l section of A.
Be sure you know how many stops youre making before you decide to take Super Shuttle. It took forever to get to our hotel! The extra for a taxi would be with it.
Leave lots and lots of time to clear security. It's very slow. The train doesn't go to the D terminal and doesn't really go to C either, it goes a couple hundred yards past and you have to walk back.