I'll start the conversation. The best tool I've found is an open-source tool called Laverna: http://laverna.cc http://laverna.cc Self-hosting possible, Dropbox

I'll start the conversation. The best tool I've found is an open-source tool called Laverna: http://laverna.cc http://laverna.cc Self-hosting possible, Dropbox sync, tags+tasks+search, Markdown support, clean UI.