Ideally, it would do a little more than just Evernote notebook. I am using Trello at the moment, as I can order them etc. Is there a better way? Maybe even a social way?
In Bitbucket, with each as its own project.<p>Gathering "startup ideas" seems to me like a sure-fire recipe to never begin any of them. Write code, even if it's a POC, then that becomes an item on your list.