I've used Anki for a while, but never very consistently or effectively until recently. Over the past year, I've started doing the following:

1. Stopped trying to categorize cards and just create them all in a single deck (with tags in lieu of separate decks).

2. Whenever I find myself googling something or looking it up on StackOverflow (that's not wildly specific or related to domains I don't really care about), I add a new card for it.

3. Review cards for a few minutes in the morning.

The above has worked rather well. I mostly focus on topics I'm interested in diving deeper into (python, for example) and has helped fill various lacunae in my knowledge.

For broader sorts of knowledge acquisition, I use Boostnote to keep track of interesting notes/articles, but I have to confess I'm not that great at keeping it updated/relevant.