There are cost effective ways to find lower hotel rates for business trips.
If you are willing to stay in a hotel that is closest to the airport, you will save more money than if you had booked at the same hotel in a location near the city or business district. This is really convenient if the city has a convenient public transit system, such as Chicago, Atlanta or New York. The transit system in each of these cities is convenient to the airport and downtown business districts which eliminate the need to rent a car or pay for cab fare.