Airline ancillary fees are negotiable, according to the latest report issued by the Carlson Wagonlit Travel Travel Management Institute. Among the top tips in "Mastering the Maze: a Practical Guide to Air and Ground Savings" is the travel management company's advice to negotiate a reduction or waiver of airline ancillary fees. These charges, such as baggage fees and on-board food and services, account for an estimated 6 percent of a company's air spend, notes the report, but only 55 percent of travel managers track how much is spent on such fees. The report also advises travel managers to negotiate a refund or back-end discount on fuel surcharges. The complete publication is available for free here, or it can be downloaded as an app for the iPad at the iTunes Store.