Fancy Tags
They say that imitation is the sincerest form of flattery, and I agree. They also say the path to success is made by acknowledging your own weaknesses, and find ways to make them irrelevant. I also agree.
As such, I just copied the paradigm for the way that most OS X applications handle tags. The end result is pretty good, I think. Click in the box, and start typing out a tag, then simply hit tab or enter to finalize it.
It is template based, as I like using templates rather than document.createElement messes. View the markup section below to see the template.