Just a few days ago, Twitter started rolling out a feature that lets you download all the tweets you've ever sent. We've known for a while that this was happening, but now Twitter is starting to push the feature to everyone. Here's how to get your old tweets.
Go to your settings and scroll down to the bottom. There you should see an option to request your archive. Click it if you do, and you'll get an email with further instructions. If you don't see the option, be a little patient. Twitter just started the big rollout today, so it will take a bit to get to everyone. And it will also give you a little time to worry about the stupid things you tweeted two years ago when you were out partying. [Twitter]