Never do I feel such a sense of accomplishment as I do when I spend over a week doing some hardcore coding, and logic thinking to finally see my finished product.  After several trials and errors I finally have a working tag cloud.  For those who don't know, a tag cloud pretty much shows what I post about the most.  The bigger the tag (category) in the cloud, the more post that are related to it.  You can check out an official definition of a tag cloud here.