Do you have any family traditions in your household?
In my current household, the family has a Bubalus cage. They kept the name of it as Bubalus. Then when Bubalus died, they bought a new one and named it Bubalus V2. I think you can guess what the third...
I don’t have too many traditions since I always like changing things up, but one thing is my sims always have wedding photos. They always get married in the park and get their photo taken after their vows.