Story Analyzer was created by my friend Shiraz. It's free and helps a lot with cleaning up writing. There are a variety of issues you can ask the Story Analyzer to help you look for, such as repeated dialogue tags, phrase summary, and other stats. I've used this before to look for words that I tend to overuse, to rephrase sentences to not all start with the same word, and have used it for all sorts of other general editing purposes. Again, it's free and it's extremely useful, so why not give it a shot? You'll be glad you did!
If you have a good experience with the Story Analyzer, be sure to leave a note of thanks, and feel free to comment below with questions, remarks, and other various comments.