Best tip of the whole article and follow-up - if you are using a discount coupon, be sure you tip on the full amount of the food/bev bill. I have watched a lot of people bring a BOGOF coupon into a restaurant. They are so pleased at the low cost of the meal. They never think to tip the waiter for serving TWO meals!
It threw in a little riddle: "What's the difference between a Canadian and a canoe?"
.
.
.
"Canoes tip....."