... actually I guess this isn't much of a problem for most people,
since these instances will probably actually have very short lived
scopes. But it would sure be a mistake to use django.core.cache to
cache one of these objects.
Models with ManyToMany relationships cache related objects over that
relationship in an instance attribute. For example if my model class
'salad' has a ManyToMany to my model class 'soup', then my
'caesarsalad' instance will have an attribute called '_soups_cache' and
when I call "caesarsalad.get
