Ways to make the game more interesting (apart from challenges)

When I am bored with the game I have a look at "old" Sims families (e.g. at fandom) and re-create them in TS4.
Recently I re-created the Wolff family from Sunset Valley I had totally fogotten about. Now they live in an apartment in San Myshuno. Thornton is a business man and his wife Morgana is a doctor. They have a son called Lucas despite Thornton disliking children.