If you are a work traveler, can book hotels directly, and use your own credit card, the Citi Prestige is a no-brainier. This card is one of the top-tier cards offered today (along with the Platinum Card from American Express, and the soon-to-be-released Sapphire Reserve from Chase). Though it comes with a hefty price-tag by way of a $450 annual fee, it has a staggering number of benefits.
In addition to the $250 annual airfare credit bundled with the card, one of the most advertised benefits of the card is receiving a free night for every booking of four or more nights. There is no limit to the number of times you use this benefit, so you can easily make your money back many times over. This is particularly beneficial when your work reimburses you for any travel you have to do.
To take advantage of this benefit, you just have to call the Citi Prestige Concierge at (561)-922-0158 and tell them that you would like to use the fourth night benefit for your card. They will walk you through the process of identifying where you would like to stay, any special rates (AAA, AARP, government, or corporate booking code), and your frequent guest information (Hilton HHonors, Marriott Rewards, etc.). They will then make the booking and send you an email detailing how much the entire stay will cost and how much you will be reimbursed. This is key as you will be paying for the full stay and then Citi pays you back the cost of the fourth night including taxes, but not resort fees. Per, TheFrequentMiler, conference rates aren’t bookable this way, but most others are. Be sure to check online through various booking systems (directly to the hotel, sites like Kayak, and others) before calling so you have a general idea of what to expect.
Even though this benefit will be changing over the coming months, so the credit from Citi will be for an average of the four nights instead of the price of the fourth night, the value offered by it easily out-weighs the $450 annual fee.
If you are interested in applying for this card, you can find it on the Citi website [not an affiliate link] with a 40,000 bonus point offer for completing a $4,000 spend in 3 months. I would strongly advise you checking a local Citi branch, however, as there have been reports of local bankers providing the old offer of 50,000 bonus points for completing a spend of $3,000 in the same period of time.