Auth

Does the shopping cart library built into CI come with models, views and controllers baked in? Does it come with any kind of database structure ready to inject into your DB? Does it dictate how you must use it? No! So what is it's point?

I don't want to go too off-topic, but since you brought it up the shopping cart library is pretty stupid and should be removed lest some inexperienced user actually make the mistake of trying to use it in the production of an e-commerce site.