There’s no sadder sob story than the one that involves showing up at a hotel only to discover there’s no room reserved for you. To avoid that scenario it’s a good idea to double check your reservation.
You can do this online, or you call the hotel 24 hours before you arrive. If the booking never went through, this will give you plenty of time to reserve a room there — or to reserve a room elsewhere, if that hotel is booked.
It’s also a good idea to bring a copy of the transaction or online confirmation page just to verify that you did, indeed, pay for a room. Being able to prove the rate you paid may help protect you from any “gotcha” fees the hotel tries to levy.