Here's a HYPOTHETICAL plan, to make an extra $15 a day: Ther are many things that make this "plan" complete non-sense. And I'm sure there are more problems I haven't even thought about.
This is what my friends Jason, Willie, Doogie and I can up with drunk one night. It's going to involve a few friends that you TRUST and a credit card that gives you cash back.
The plan all started when my friend Doogie won an autographed picture of Elton Brown (yeah, I know... who?) a football player for the cardinals. Here's how we use a credit card company's rewards system for our profit:
Doogie offers the picture up on Ebay for $10 million. No one on EARTH would buy that. Except me.
I buy the picture for $10 million and via paypal, charge it on my American Express One card (it has "no limit") and Doogie now has $10 million dollars - and I've got one hefty credit card balance (try getting a car loan with that balance!)
There are hidden fees in this however. There are fees for entering an item on ebay, closing costs, paypal fees for using your credit card, and the big issue is that most of them are %'s of the cost. That problem - thanks to jason - is solved by tacking the fees onto the shipping cost. So, to ship this picture it will cost $647,370.66. Therefore, my total charge to paypal is $10,646,370.66, paid for via credit card.
Then, to make things non conspicuous. (ok, keep reading when you stop laughing) Jason buys the picture from me for $10million and then WIllie buys it from Jason and so on and so on until Doogie realizes how much he wants the picture back and buys it back and pays off his credit card bill in CASH (or he screws someone and keeps the $10million.) Therefore, by the end of every credit card billing cycle we'd have to continue to buy and sell the picture so we can pay off our credit card balance and avoid any interest.
So if everyone has a no-limit 1% cash back card. Then after the $10,646,370.66 is paid for, 1% ($106,463.70) is deposited into our high yield savings account (with a 5% return rate) which means that yearly we would make $5323 a year in interest (compounded daily - deposited monthly) which works out to just under $15 a day.
What do you think? - the only drawback (ok, the BIGGEST) drawback is that you'd have to claim $10million in income on your taxes.