Webcomic artist Kate Beaton will sometimes do strips that involve her present self talking to her 5 year old self. Recently, she invited people to make their own 'Conversations With A Younger Self' comics and post them in her LiveJournal:
http://beatonna.livejournal.com/I made a few, and found it really enlightening. What WOULD you say to yourself at 5, 10, 16, or any when in between? Here's mine, what can you come up with?


(the action isn't really clear in this one, I'm not an artist, I just play one on teevee. Lil Me tries to jump from the bunk bed and hang on the mobile and fell onto the bear, if you can't tell)
