So here are my babies:
As a passionate Sitecore developer I love to code. Building modules for Sitecore is for me very poetic: instead of coding for money, creating value for the client, you code for free and let the value to the Sitecore community.
I like when the tool I build solves problems in another project, such as when I used my Rule Processor to mass replace strings in a RichText field. The client has a huge repository of News Articles (about 2000 items in several different folders), wanted to replace a certain HTML markup with something else. All I had to code was a new Action for the custom replacement and run my tool – what a proud!