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I've also just discovered: Ctrl+Space, then type the element you want, e.g. span, press Enter and the complete tag is inserted.

I'm new to Sublime Text 2 and discovered the Tag package ( which completes the tag after you type '</' (without quotes), similar to Dreamweaver, if I remember correctly.

Also, if you haven't discovered it already, I can thoroughly recommend Sublime Package Control which makes it really easy to install new packages, see