I are working in a small development team of 4 people. We are trying develop "Agile style" - story points, small tasks, etc... Unfortunately, we are currently managing our tasks in a (shared) excel table.
We looked at some available tools (Mingle, TFS, Scrum for Team System), but all of these looked like they would be too much overhead and take the fun out of working.
What are you Agile lovers using for tracking your tasks over long period of time?
Update The current top answer is not really an answer to what I intended to ask - I need some tool to help me find out, over the long run, which features & tasks I estimated correctly, and where did I go horribly wrong. I see how a whiteboard/all of post-its help with managing the current or previous iterations, but I don't see myself searching for a post-it from 2 months ago.