I'm in a new job and just found that our carrier is charging us 9.95 per month just to send us a paper invoice! That's on top of the 150. "minimum charge" - on a bill that is already over 1,000. And their service, without exception, stinks.
We're thinking of starting to use the same tactics with our customers (not really). Who knows to what depths one can sink when trying to keep a business afloat!