Over the last eight years, David Do, 33, has enjoyed “travel hacking,” or the practice of maximizing rewards programs and credit card points to earn discounted travel. He has earned over a million credit card points across over 30 cards and has traveled to 33 countries. Earning $78,000 annually, David works remotely as a social worker, which allows him the flexibility to pursue his passion for traveling. | CNBC Make It

Travel hacking means strategically using credit card rewards programs to score free or discounted flights and hotel stays, often by taking advantage of bonuses for opening new cards or transferring points between programs. It’s a hobby that requires vigilance – both to ensure that you snag the best deals when they arise and to make sure you don’t accidentally rack up debt across your array of cards. Since 2017, David Do has earned and redeemed well over 1 million credit card points and miles, us