So like many of you I use del.icio.us to manage my bookmarks. My biggest problem is tag creep. Depending on my state of mind/mood I end up with a lot of useless/duplicated tags. This is particularly the case when I didn't have the Firefox plugin that autocompletes existing tags as you type, or when I click the suggested community tags for a given entry when I have an existing tag that would have fit but maybe was worded differently. So for a long while I've been wanting to put together a simple app that would bulk rename/merge tags so I could...