All are true, I'm sure, except one....
"Signing credit card receipts with your real name "...
It is, in Canada, required that you sign your card, and sign your slip with your name. As it appears on any other ID you have... A lot of places may not follow this rule, but we, as retailers, can refuse your card if it's not signed or if the signature on the slip isn't close. Same goes for using someone else's card.
Don't blame us, talk to the credit card companies!