If you are going to use a Delta Sky Club, go to the one on the main concourse if possible. They have a better layout and a few more selections of refreshments.
Changed my gate last minute. Had to sprint across the airport. Not complaining, it made it kinda fun. Just make sure to pay attention to the gate changes! Whew I'm sweating.
If Delta messes up your flight- complain at the help line. They gave me $12 worth of vouchers which I used on scotch. Negetive Nancy no more. Now a Tipsy Gypsy;)