[blparker]

I think having this "barrier to entry" is important. When I have an idea, I tend to let it sit and re-evaluate after the "lust" stage has died down. Often times, I realize perhaps it wasn't as cool as I thought. If something is still nagging at your days later, perhaps it's a good candidate to evaluate.

Regarding your last point, I think also what a lot of developers struggle from (myself included) is project ADD. Having discipline to scope something out, set sane (and near) deadlines and focus only on that is important to seeing it through to completion. Good work on developing that discipline.