1. Don't use a computer. The brain is better at recall if your hand is physically writing the letters.

2. Speed is important, so don't write every word, don't write every letter of every word.

2a. The preceding point could be written: "Spd impt, dont write all wrds or all lttrs"

3. Write legibly

4. Actually re-read your notes, don't just leave them and not return

5. When you re-read, notice where you can take better notes and how.