SocialSafe is an easy-to-setup and schedule, archive tool for your most important Twitter data including your Tweets, Mentions, Messages, Friends and Followers.
Use SocialSafe to preserve your Twitter social life for prosperity. Search back in time for that ellusive tweet, reminisce over all that glorious food you told everyone about and export your friends as a csv list so you can quickly see who has the most followers. Everything available even when you're offline.
Treated myself to a copy of @SocialSafe for my birthday. Now that I'm old, I need to start archiving my social (media) life.