Use photo albums!
I have over 2100 photos in my camera roll right now becuase I didn't keep up with albums. Now I feel it is too late to back and move them all around.
I also recomend getting the Emoji app "Emoticons", you can set them up right into your texting keyboard.
Just don't send them to non-iphones or it will appear as chinese characters.
My favorite:

or as a droid user may see it: