How can you shore up your company's brand reputation among business travelers? Give 'em free stuff. A recent poll of 280 randomly selected business travelers at Chicago's O'Hare and Dallas/Fort Worth International airports revealed that 72 percent of those accosted had, in their possession, at least one promo product imprinted with a company name, tag line or logo. What's more, a cool 73 percent of those surveyed were able to recall the corporate name or message imprinted on the item. Keytags, pens, calculators, notepads, jackets, pocket mirrors and other pieces of apparel topped the list of evidence.