(This isn't specifically a Textmate question, but I know a lot of Textmate users use Markdown, so I was hoping someone could help.) How do I name Markdown files so that they are: 1) Recognized automatically by Textmate as Markdown files when you open them, 2) Indexed automatically by Spotlight, 3) Use a unique extension (like .markdown) rather than a generic .txt extension? Right now, if I use the default .markdown extension, the file isn't indexed by Spotlight. If I save a Markdown file without any extension, it's neither indexed by Spotlight, nor is it recognized by Textmate as a Markdown file. A .txt extension is recognized by Textmate and indexed by Spotlight, but I was hoping to use a different file extension--one that could distinguish Markdown files from other text files. How do other people solve this problem? Thanks, Tom