#82 Always Underpromise

and over deliver, every time.   Amazon exceeds customers' expectations because they always inform their customers after check out that the item will arrive within X number of days (say 14 business days) and always deliver the purchased items in a lot less time than what they promised.  They knew that they could deliver the item within three, five or eight days, but they put fourteen because just in case something happened, they can always make it up in time and in most cases, customers get a nice surprise, "Wow, it's already here!"  Even though we've been customers of Amazon for years now, it still gets us every time how they over delivered and impressed us every time we made transactions with them.  Underpromise or undersell your capabilities, and overdeliver and exceed their expectations.  Every time.

#64 Always Tip Generously

If you are at a restaurants, tip usually depends on how many people are in your party, what kind of restaurant it is (mom and pop vs. upscale), and what kind of quality service you received.  10-15% is standard.  If you are really satisfied with the service and place, tip at least 20%.  Remember these people made a living on tips.  Coat check attendants, restroom attendants or bartenders vary based on the class of the establishment.  Sometimes we would tip them ahead of time to ensure quality service.  If you remember a particular server, you can always request for that server, if s/he is available.  That usually leads to better experience.  This is why cruise companies assign the same server(s) to the same people for the entire trip, to develop relationship and to increase tip amount.