I find myself constantly writing down ideas in a notepad/phone/document. Many of them are simple, one liners to remember the idea. Others have expanded (even

I find myself constantly writing down ideas in a notepad/phone/document. Many of them are simple, one liners to remember the idea. Others have expanded (even on my phone) into multi-page ideas, features, things to consider. That helps me write down things to work on at a later date. I let the idea bake for a moment and when I'm really passionate about it I will give it a go. Each failure though helps me realise what to look out for next time. For example, like you, I also run out of momentum. You need to pick projects that are _achievable_ in a few months (especially when you're putting in after-hours work, and it isn't your day job) to avoid picking up a project too big for the amount of time you can afford. I still write down those huge ideas, who knows if I will ever do them, but I don't pick them up (or totally forget them, either) because they are too much work to do right now. Pick the projects that sound good (and cut feature's you don't really need for launch), do it incrementally, even with a friend if that helps you stay on track, and make sure it's something you can do in a reasonably short amount of time.