I use the latest version of textmate for all my Rails development needs and I feel that I'm under-using the possibilities or this software. I only installed the Ruby on Rails bundle and use little to no snippets / shortcuts.

What do I absolutely HAVE to know / do in order to get the most out of my textmate in a web development environment?

I would prefer Ruby on Rails oriented answers, but any html/js/css answers would be helpful.

Edit: Added a bounty to get more inputs on this.

javascript html ruby-on-rails css
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