I use WordPress for pretty much everything web-related these days and in the winter of 2010, I finally got the nerve to start submitting patches to core. Below is a list of all of the contributions that I have made that have been accepted. Some of these patches reflect code completely written by me while others are comprised of a community effort with multiple developers working out the solution. It feels really good knowing that I have been able to contribute to such a great project. Open Source FTW!