On the 14th June 2015 I took the plunge and uploaded my first usable application, a RTF Text Editor to my Codeplex account. Why don’t you drop by Codeplex and take a look.
Edited 2nd April 2017:
Codeplex is closing down so the source files have been migrated to GitHub.
A Simple Rich Text File (RTF) Editor that almost always does what it says on the tin. But like a bad puppy it sometimes pees on the carpet. Bad puppy.
This is a learning project for me. I use it to improve my knowledge of C#, which I have been learning over the last year.