I like working on index cards because if I screw up a note I can just throw it out and start again without impacting any other notes. Notebooks give me anxiety;

I like working on index cards because if I screw up a note I can just throw it out and start again without impacting any other notes. Notebooks give me anxiety; my fear of somehow "messing up" the notebook causes me to underuse it. And the sortability/filterability of cards sometimes comes in very handy as well.