Obsession with twngan

Today I needed to ship some documents to California so I went to a nearby Kinko/FedEx. Standard overnight shipping costs about $24. Ouch!!! Anyway, three quick facts:

• I suspect they lose money on many photocopying. I copies 2 sheets of paper. It costs $0.17, but I paid with credit card, so I believe the transaction fee is more than the amount I paid.
• I tried to setup a FedEx account online in the hope of getting a 15% discount. That didn't work - I didn't know they need one whole business day to activate a new account. Maybe that is on purpose.
  
• While I rushed to make sure that my envelope would be on the flight tonight, the lady in front of me was sending a very large but flat package. She went inside the counter and requested to try all combinations of dimensions (e.g., swapping height, length, and width) to see if she can get a lower price. "It may sound crazy," she said. She seemed to be very familiar with the procedures, and put the mailing sticker to her invoice herself, but then she left the invoice on the counter, only to have the staff to chase her to her car and wasted me more time.