Seems I don't post much, but when I do, it comes in batches... :-)
This post is about a wonderful little utility called "Beyond Compare". As a developer / code writer, it's very hard sometimes to keep track of changes that have occurred between file versions and bugs can creep into our products simply because of a file regression.
Beyond Compare helps prevent such problems by allowing levels of file and folder comparison in an intuitive, productive way that I had wished for a long time, but had never imagined existed.
Here's their web site. Well worth the $30.