I'm in the process of converting one of our web applications from CodeIgniter to Laravel. However at this moment we don't want to add the
$timestamps = false;
You either have to declare
public $timestamps = false; in every model, or create a BaseModel, define it there, and have all your models extend it instead of eloquent. Just bare in mind pivot tables MUST have timestamps if you're using Eloquent.
Update: Note that timestamps are no longer REQUIRED in pivot tables after Laravel v3.