Stumble.com finds the following book of 'How to get stuff for free'

Example from book.

In restaurants where you pay at the door just before leaving, there are a number of free-loading tricks that can be utilized. After you've eaten a full meal and gotten the check, go into the restroom. When you come out go to the counter or another section of the restaurant and order coffee and pie. Now you have two bills. Simply pay the cheaper one when you leave the place.


And more!