If you're weird, I'm weird too.

It just seems to me that the main should worry about interfacing with the outside world, and the rest of your code should really just be written as a library.

Yes, my main usually does little more than argument handling.

Not really weird - it allows for more composability if you ever need to go that way.

I think I do that to avoid global variables as much as possible, as well. Declaring things as "local" tends to keep me honest, as opposed to having a bunch of junk cluttering the global namespace.