what notes to make?

[Karn]

Hi all. I want to ask u, what notes do u make for your opponent? I usually make notes about opp's strategy on particular home cards(smth like 'miniraise with AA in UTG'), about his strategy on hand(smth like 'never makes a continious bet without a pair') or about smth enormous in his push or call range(smth like 'call push with K6o').
But it's not very efficiently usual. What notes do u make usually?