Update: Gregorie Pineau pointed out to me that this was already done, so I will refer you to the more canonical resources: Silex Skeleton and Silex Kitchen Edition.
Update #2: However it does seem that my setup may be even more minimal than even Fabian's Skeleton, which could be a benefit to some.
One of the inherent problems of micro frameworks is the tendency to just go ... willy nilly ... and put your files in any ol' spot. It makes the code look awful and hurts your brain trying to comprehend where to handle your changes, and then your project turns against you.
To that end, I want to help! Who's surprised? Awww, c'mon! Pretend? Ok. Thanks.
I have created a Sample Silex Install on GitHub that shows some of the best practices for working w/ composer, and getting off to a great start with your next Silex project.
Questions? Comments? Please leave them below!