If you don't have the space to leave your soldering iron sitting out all the time, Instructables user McLovinGyver shows off how to make a movable electronics station that folds down into a small box.
McLovinGyver's box includes a place to hold a soldering iron, lots of shelves for different components, and (genius idea) a compartment for wire on the side. The whole thing is built inside a wooden box so it's easy to move around and set up without taking up a lot of space.
Of course, you don't have to use McLovinGyver's exact build. The main goal is getting everything into a box small enough that it's not in the way.
Electronics-Lab in a Box [Instructables]