Keep your meeting notes as a running journal.

Use symbols so you can quickly scan your notes later.

If an item requires further research or resolution, I put a question mark next to it.

If an item requires follow-up, I put a ballot box (open square) next to it. When the item is completed, I check it off.

If I have assigned a follow-up item to someone, I put an open circle next to it

In the notes, I indicate who is responsible. When the item is completed, I check it off.