That proof of residence is a critical document, and for many the only form of identification: Besides serving as proof of nationality and getting you a new roof over your head, it can help you get discounted provisions at government-run stores, a phone and utility hookup and a voter registration card.

FORBES: Billionaires List

Whether domestic or international, that agent is required to obtain your legal name so that it matches your legal document (used for identification purposes by TSA), as well as your date of birth.

FORBES: Why I Hate Travel Agencies