I use Gmail. I have an email thread going (sent to myself) that's I reply to every time I have a project idea. It's pretty rare that I'm thinking about project

I use Gmail. I have an email thread going (sent to myself) that's I reply to every time I have a project idea. It's pretty rare that I'm thinking about project ideas and also not anywhere near a computer. And if I'm not, I just remember it for a few hours until I am or write it down on a sticky note in my wallet. I should note that I very rarely actually go back and implement these ideas--I just used to have a thing where I'd want to do something and I'd have no idea what to do. I've become a lot better at generating ideas and so it's no longer really an issue, but I still like keeping them around. It's fun to see startup ideas I've thought about appear here on HN in the form of companies and realize I'd had the same idea a while ago.