Hi there!
One aspect of TDD is go step by step and keep the focus. If you follow the Boy Scout Rule and have a common project it is easy to lost that focus. Like Kent Beck teaches us in Test Driven Development it is good to use a Test List. Normally a pen and a paper is enough. I like to have it integrated into my IDE. Fortunately Sergiy have had that same wish and wrote the Tasks-Plugin for IDEA. Great.