Message in a bottle. What would I write in something like that? Would I tell the ocean my deepest darkest secrets because I know somewhere in the back of my mind no one will ever find it, and if they did find it they wouldn't know who wrote it. I wouldnt put my address or my name, because wouldn't that completely defeat the purpose. What if I threw it in a small lake? The lake near my house, haha the man made lake with the fountain spouting from the center, oh how un-poetic and unsentimental. Would it be in letter form or list form?  What Kind of bottle? Probably a wine bottle..maybe wine bottles are too big. No one sells those cute little bottles that are shown on TV & Movies, with a tiny cork. I saw one of those bottles once in Puerto Rico at a Gift shop, it had sand in it and "Puerto Rico" written on the side... 

Ultimately you write a message in a bottle so someone someday will read it, why you do that is probably different for everyone...

Wait. I don't even live near the ocean. I'll go to Disney and throw it in there fake ocean and then one day a couple will be standing at the edge on their Fantastic disney Honeymoon and a Huge Wine bottle will float over to them and they will say "these people really need to clean up".:P