How can I quit smoking?!

How can I quit smoking?

I don't really have the money to spend on a class or on the patch as well as not liking nicorette gum or anything like that. My girlfriend smokes which makes it a little tougher on me and she refuses to quit. I smoke about a pack of Marlboro Ultra Lights a day. I am 30 and am not having any health problems, I just realized that I have been smoking for over 10 years and never thought I would when I started smoking.

So any brilliant ideas that worked for you?

Quit slowly or cold turkey?

I quit cold turkey, but first off, you have to really want to quit. Also you will have problems when those close to you are lighting up. Good luck!