2. Airline Gate Agent or Customer Service Representative

Travel routinely ranks as the number one retirement goal for older Americans, but the rising cost of airfare can quickly deplete a travel budget. Working part-time for a major airline is the ultimate hack for globetrotting retirees.

Airlines offer their employees, and often their spouses and eligible dependents, standby flight benefits. This means you can fly for free—or for the cost of nominal taxes and fees—on any flight that has empty seats. Many airlines only require part-time employees to work 16 to 20 hours a week to qualify for these comprehensive travel perks.

Jobs range from handling baggage on the tarmac to working the ticket counter, staffing the customer service desk, or assisting passengers in premium lounges. While the shifts can be early in the morning or late at night, the payoff is unparalleled. You can wake up on a Tuesday, check the flight loads, and jump on a plane to Hawaii, London, or Rome without paying a dime for the ticket.