When I was a kid, my mom always told me that if I didn't learn to cook, I'd never get married. My response was, "Well, then I'm never getting married." Fortunately, I had the good sense to find and marry a food snob, and he had the good sense to force me to learn to cook when I quit working an office job to stay home with our kids.
So I set a goal to learn 50 new recipes. The rules were:
1. I had to make it correctly - if I screwed something up, I had to make it again before it counted.
2. If we didn't like it well enough to make it again in the future, it didn't count.
It took me a year and a half to do it - Sept. 06 to Feb. 08 - but I also had a 2nd baby in there. And now I have another goal to learn another 50 recipes but this time to do it inside of a year. That of course comes out to 1 per week with 2 weeks wiggle-room.