Any rubyist that's defined a class should understand the following class definition:

I've had a dream for a while. A simple webapp that takes the last tweet in a conversation and outputs that conversation in chronological order on a page you can link to forevermore. Occasionally I'll google to see if anything new's turned up, but they all seem to do far more, require the start and end tweets or are covered ...

Imagine you've got a blogging app and it's currently generating URL paths like posts/10 for individual posts. You decide the path should contain the post title (in some form) to make your URLs friendlier when someone reads them. I know I certainly prefer to read http://caiustheory.com/abusing-ruby-19-and-json-for-fun vs http://caiustheory.com/?id=70. (That's a fun blog post if you're into (ab)using ruby occasionally!)

See the Update at the end before you get excited :(

I use a wonderful service for saving text to be read later, instapaper.com. It's gotten more wonderful as time has gone on and other applications/service's have gained the ability to save links/articles/webpages there for me to pick up later.