Well, affirmations work best in fact ^^
Although I've seen The Secret many times and read about visualization a lot, I can't always "generate the feelings" - wich is an important part of it - and therefore I don't use it very much :/
The last times I "really" used affirmations was November 2007. I really wanted a job (any job), cause I couldn't stand sitting all day in front of my computer, doing nothing. Each time I met a good friend of mine, I told him how bad I wanted to start working on Saturday (here the week begins on Saturday).
We were on Monday if I remember well.
Later on that day, I met another friend, and she told me about her job, and that they were looking for more tele-operators.
The next day, I went there to chek it out, they called me back on Tuesday, and on Friday I began the 3 days formation

I started working next Monday.
I forgot all about my affirmations, until my friend reminded me :: "Come to think of it, you wanted to stard on Saturday, you started 2 days later."
So, yes, affirmations work for me =)