Originally Posted by Cheap Elite
Your status is shown on the check-in screen. It also shows your points balance.
However, as others have suggested, always carry your card, you might get additional perks (like in Vegas) and always carry a printout of your reservation.
they always need your credit card no matter what. always place your Diamond card or whatever on top. Even the dullest of agents gets a reminder, without the chit=chat. They deal with hundreds of people a day. A little reminder jolts them out of their morass. When they plug in the HH# and see you have 800K in the bank, it wakes them up (a bit) YMMV