A system to organise your life
johnnydecimal.com
Johnny.Decimal is a system to organise your life. Find things, quickly, with more confidence, and less stress. It's free to use and the concepts are the same at home or work.

I found this a year ago and it’s IMHO a very good system to organize projects (software projects for me). I don’t expect everyone to follow those rules, but it helped me a lot when I needed some organization.