The 6th practice to avoid is theft of miles:

Saving money is in, but taking it out of employees' hides in the form of taking frequent-flier miles is the hallmark of a Mickey Mouse outfit. If your employees are trotting the globe to advance your cause, let them keep their hard-earned air and hotel miles. (Have you flown economy class recently?) What to do instead: Tell your travel agent to book one-stop flights in place of non-stop ones, saving a few bucks.