Ever had to try to decipher SQL that was generated by a report writer or sql generation tool such as Cognos Framework Manager? How about trying to read through a co-worker's messy SQL? Not fun.
One of my favorite tools is the Instant SQL Formatter. It will clean up any valid SQL statement based on user configurable options. I usually just stick with the defaults. It's a great tool and it's free. Can't beat that. One of the first things I do when I set up a machine at a new client site is to add it to my favorites in IE.