Those were just a few of the reasons for why I personally choose to keep a diary. I'm sure other people have better, more logical motives but I would still totally recommend it. It's definitely a worthwhile thing to do, and the best part about it is there's no binding contract. You can write in it as constantly or as infrequently as you want. It's your diary, your life! Be proud; I intend to keep a diary for the rest of my life!