See You Next Wednesday said:mike23, your entire scheme seems to depend on not paying interest rates on introductory cards which absolutely rapes people in the long term (imagine 12-20% on a big ticket purchase like a PC or TV).
That or getting "rewards" back from credit card companies, which in a lot of situations are completely useless for many people.
I'm talking about paying off the credit card at the end of each billing cycle which avoids interest. The important part is that I'm not suggesting spending money you don't have, just spend it on the credit card and get all the benefits.
My Amazon card gives me 1% on all purchases and 3% from purchases on Amazon.com. It takes about 3 clicks to trade in 2500 points for a $25 deduction on my balance and it's there within a few days. My Citi card is a bit worse with respect to the points:dollars ratio but its still just a few clicks.