What you need is an electronic notebook synced of whatever form: Apple notes, Emacs with Git, whatever floats your boat. It has to electronic and it has to be s

What you need is an electronic notebook synced of whatever form: Apple notes, Emacs with Git, whatever floats your boat. It has to electronic and it has to be sync to all the platforms you work on. Then you either create a new file or just add an entry whenever you want to add something to your idea inbox, or whatever else and it can grow from there as necesasry.