#11 Banking Off The System
I had a buddy that worked for AmericanExpress when the new dollar coins came out. He was able to secure a $40,000 line of credit given he worked there. He would buy $40,000 in coins for the points, open them all, take them to the bank and tell them he was a coin dealer looking for misprints and they would deposit $40,000 into his account. Rinse and repeat. He ended up with 4 million airline miles off his card. He once took a trip overseas, instead of finding a hotel he would fly somewhere first class that was an eight-hour or longer flight so he could sleep. He was also able to buy tickets for people at $0.03 a mile.
Credit: Danobing