No employees, no meetings, no clients and all you need is a wifi connection…. Sounds too good to be true? Well, I’ve been running a business just like that for the past decade and it involves flipping sports cards. Written below is a step by step on how to make money with sports cards. There are thousands of sports cards uploaded to ebay every single day. What you can do is buy these cards that are in good condition and get them graded. Once a card grades a 10 you will on average 2-3x your money