How can i become a Pilot the cheap way without going to ATP or Flight Safety?

Both of those flight schools would accept me in, however my credit is non existent and cant get a co-signer. Both schools are in the $60,000 + Range. How did some of you pilots out there go about doing it and what would be my cheapest option? I'm 25 years old now and already work for the airlines as a flight attendant. Any help would be greatly appreciated.