For reminders and tasks: Google Keep from the Android phone and the Google Chrome extension. For Notes: Boostnote plus Dropbox to share the notes between PCs.

For reminders and tasks: Google Keep from the Android phone and the Google Chrome extension. For Notes: Boostnote plus Dropbox to share the notes between PCs. I used to be a user of Zim but at the time the lack of Vim keybindings it leds me to look other Notes tool.