What to do?

Once we have made decission what kind of homebrew to do, we might confuse what we wanted to do first. There are too many homebrew projects we can do. So which one we should start first. Which project more interesting, more benefecially to us and more value for our own used. Just to name a few we should categorized the homebrew projects in some area or division such as anttena, elctronic projects, or what else??