By which I’m referring to the new Suica/Narita Express deal. For 3,500 yen, you get a Suica card which provides (1) a one-way trip to anywhere in Tokyo via Narita Express and (2) 2,000 yen in Suica credit which you can spend on just about anything.
Considering that the Narita Express alone usually costs 3,000 yen just to get you to Tokyo Station, this is an incredible deal. The only catch is that you need a foreign passport to get it. (Discrimination!)