Large hotel and car rental chains, as well as many airlines, all give corporate discounts for employees of large companies that most anyone can take advantage. Since sales staff will rarely verify your employment by a corporate partner you can often get a corporate discount just by saying your work for (some specific) Fortune 100 company. While I won’t debate the ethics of doing so, the best way to maximize your corporate discounts is to research ahead and not be shy to ask. While large chains are usually a safe bet ask for corporate discounts and smaller hotels which may not advertise their corporate partnerships. It’s as simple as coming up with a company big you work for (whether you do or not) and asking if that hotel, rental car company, or airline offer a corporate discount.