There are a few things I wrote that may be useful to somebody:
A smallish (Ruby) library to talking to AfterShip via v4 API.
Shorten URLs with bit.ly API, make parallel requests.
Deep duplicate Ruby objects.
Do something to a collection of items and see how long it is goingto take. Useful for long-running Rake tasks.
This is just a tiny library which abstracts away working with GPS points and bounds on the Mercator map.
This is a Ruby implementation of the k-means++ algorithm for data clustering. In other words: Grouping a bunch of X, Y points into K groups.
A Ruby progress-bar tool showing how many hours you have worked, should have worked and will have worked.
This is a simple Ruby command-line application to display upcoming and past events like birthdays, namedays and payments.
A simple Rails app for keeping track of projects with tags and ajax goodies. I often forget where what is so now I will know.