I have a handful of these too. (Like ecesena, I think they're "best practices", not design patterns.) It might be useful to put up a wiki so people can discuss

I have a handful of these too. (Like ecesena, I think they're "best practices", not design patterns.) It might be useful to put up a wiki so people can discuss. Even something simple and ugly like c2. For example, handling hyperparameters is actually a topic in itself.