United Way of Miami, her firm teaches everything from how to go online and address a supervisor to how to understand a pay check, create a budget and deal with conflict in the workplace.

FORBES: Giving Low-Wage Workers A Pathway Out Of Poverty

Their plan would allow most people in the country illegally to qualify for a probationary legal status, provided they register with the government, pass a background check and pay a fine and any back taxes.

WSJ: Obama Praises Immigration Proposal

If you must take your own gear, pay to check it on the outward journey, then hook up with a local good cause via www.stuffyourrucksack.com and donate items to schools and orphanages on the ground rather than bringing them home.

BBC: A guide to travelling with only carry-on luggage

They're also old enough and often just independent enough that a parent may be willing to pay to be able to check in with them whenever they want.

FORBES: Mobiles For Minors

If she had cashed a refund check issued in error, she would have been required to pay it back (with interest, of course).

FORBES: Waitress Gets Huge Tax Refund Check - By Mistake