For myself I maintain a list of achievements throughout the year in a Word document, then at review time I edit this and submit to my boss. I found if I wait until review time to try and remember what I did all year, I'll forget a lot of things. He can use it or not, but it gives me an input to my review. For my staff I have a form that I give them on a monthly basis to list their accomplishments; then we review it on a quarterly basis.