What to present to the front desk at checkin

Although hotels vary, the following is a general list of what you need to present to the front desk at check-in:
Present your confirmation number and rate information.
Some Hotels require a picture I.D. to check in.
Present the credit card you will be using to pay for the room.
Many Hotels require the plate numbers of the cars that will be parked in the Hotel's parking lot, so jot down and present your car's license plate number.
Present any coupons, memberships or associations that provide you a discount.
Present any frequent flyer or loyalty membership programs you need credited.