Some companies have introduced rewards programs to encourage employees not to spend their maximum daily allowance for meals and other expenses while traveling, says Kevin Carey, senior vice president at American Express Global Business Travel. The companies either give the employees a portion of the money saved or use it toward a future trip. "Some of our clients have noted that this has had a positive impact on reducing overall costs and an increase in policy compliance as a result of these schemes," he says. A recent report by Rocketrip, a company that enables employers to reward workers for spending less on business travel, found that employees are increasingly using "out-of-the-box" strategies, such as booking lodging via Airbnb, staying with friends and family, purchasing bundled packages and taking trains instead of flying. And like Naugle, they're increasingly giving up their frequent-flier miles. Get the full story at USA Today