There's also a Pebble app called "Notes to Self": push button, dictate note, note gets transcribed and added to the timeline, either in the past (if note lacks a timestamp or is in the past) or for a future reminder. It's been the lowest friction for me to set reminders or save notes to myself about things that happened.
https://apps.repebble.com/notes-to-self_1bf71e21cd18409baa8e...