Well, thats until I came across this article from lifehacker.com a few days ago that outlines how to use the camera to increase your memory.
My fav bit that i picked up from this article is to use your camera phone to remember where you parked in the mall and to use your camera phone to take a picture of an item you want on your wishlist! I have found myself on several occasions on the wrong floor of the parking lot in the mall, so now i take a picture of the area/ floor number of where i parked. Also when i go to the mall without cash on me, just to window shop, i find interesting stuff I want to buy the next time i drop by the mall so i take a picture of these items and label them with the price and the name of the store.
This article from itmanagement.earthweb.com details other uses of the camera-phone aside from extending your memory.
What do you use your camera-phone for?