What do you do when you max out a sims career?

I often switch careers when maxed out after saving up Simoleons to a reasonable amount. But i mostly try to match them up in a way that makes sense and it fits the story/made up character of the Sim. Like Cook moves on to Critic Career (Food Critic) or Business CEO becomes a politician. Starting a Family and maybe raising Kids normally happens parallel to first career, to have a bit of a struggle.