Vote in the poll: do you tip in casinos?

So, do you tip in casinos, and if so who do you tip? In the poll above you can vote for more than one answer.

Some people say they only tip on handpays but some say they tip only on handpays that are jackpots and require a W2G or a check.
Some players make bets for dealers at table games after a win and some do it even when they are not winning. Some table game players will tip with a "hand in" meaning a direct tip instead of a wager made for the dealers.
What about other casino workers? Do you tip floormen at poker, or change makers? How about the change person who brings you chips when you play poker?
Or do you refuse to tip because casino workers are already paid for their work?
Do you tip the cage workers or cashier when you cash in your chips?

Let us know your opinion and why if you like?