Django doesn't support displaying of related objects from a many-to-many relation in the changelist for a good reason. It would result in a lot of database hits.
But sometimes it is inevitable and necessary to e.g. display an object's categories, which have a many-to-many relation to the object, in the changelist. Given that case, does anybody have some experiences/snippets etc. to speed this up a little (thinking of caching, custom sql queries...)? (I am aware of the fact that I can make a method that calls object.categories.all()... But this can really be a pain in the ass...).