Default Folder X on sale today only
Default Folder X has a slew of great features, but the one interesting to taggers is that you can define Spotlight comments when you save a file. This is possibly the best way to maintain a tagging system, since tagging when you save removes the need to go back over your files and organize them (which is unlikely to happen for most of us). If you haven’t tried Default Folder X yet, I strongly recommend it even for those people who aren’t interested in file system tagging. This is one of those applications that I wasn’t really sure if I needed, but then after I’d used it for a few days wondered how I’d survived without it.