The same happens to me to a lesser extent (there are a dozen half-baked chess engines buried in my Eclipse workspace). Maybe you are just looking for a distract

The same happens to me to a lesser extent (there are a dozen half-baked chess engines buried in my Eclipse workspace). Maybe you are just looking for a distraction because your current task bores you - then there's probably no happy ending to those project skeletons. But maybe it's part of your creative process? I've procrastinated several ideas for decades, always starting and abandoning an implementation in a matter of minutes, but eventually I saw (some of) them through. Maybe that is just your way of "thinking out loud". If that indeed bothers you, then maybe tweak the parameters a little, eg. think more about the project before coding the first line or draw schematics on a paper or discuss them with somebody first?