Ask HN: How do you remember what you've learned?

I've been using google keep to take notes and remind myself to review them with spaced repetition (more about spaced repetition https://apps.ankiweb.net/docs/manual.html)

Nice things about using keep for this:

- access from any device

- nice UI

- supports images

- reminders to review a note

- half decent text editor

- searchable

- categories

- free

cons:

- mixed in with other notes in the default view

- hard to export for review in other formats

- have to manually set the interval (e.g. using reminder tool to set 3 days from now, then 1 week, then 1 month ect). This is tedious

- not suited for larger documents

- not really suited for flashcard style of studying

Other things I've tried:

- folders with text files

- ankiweb