Yes, but if I told you I wouldn't make nearly as much money. My niche is my niche, a little competition hurts my bottom line a lot. Sorry for not giving away my strategies...but there are many ways to succeed in affiliate marketing without spending a dime to obtain traffic.
There are plenty of other ways besides PPC. It is all about being creative. I would guess that many people who make a decent chunk of change through AM do it from ways other than PPC. If you look around WickedFire you'll get an idea of what i mean. Cheers
I get a little from organic traffic too. Not much yet though but I don't concentrate on other methods yet though.