I love the idea of tagging and emergent knowledge organization. I use del.icio.us religiously to keep track of posts I read in various categories. I like to see what's happening on a variety of Technorati tags. But I always forget to tag my own posts.
Tagging is too much work.
I want a cheat sheet sidebar I can drop onto my blog with pre-coded tags I can simply click on. Or maybe a drop down menu built into TypePad I can populate with my favorite tags. I'd like others to be able to tag my own posts (hey, share the workload). Until I have at least one of the first two, my tagging will always be sporadic and half-hearted.