很简单就是撸蚊子肉.
比如说, 晚上有一些专门的 Credit card processing services, 它们收你2.75-2.95% processing fees, 但是很多信用卡某些特定项目, 5% back, 就是说 you pay 3% processing fees and get 5% back, so if you MS 1 million dollars thru the system you gain 2 million points.
2 million points worth 20000-40000 dollars.
MS我很少做,我基本上开关卡+ spending, 我一年大概能撸出10-15万美刀的旅游价值,