The price on the tag of Aidan's leather chair is $3800, but when he writes out the price for Carrie with her discounts he puts the original price as $3500, then subtracts $500 for the designer discount and $1000 for the dog humiliation discount, and somehow winds up at $2500 for her price.
Miranda calls Steve by his real name when he tells her he's been selected to shoot hoops for a shot at $1 million, and is going to be a millionaire, Cynthia Nixon smiles at him and says "Yes, Dave."