What rules will you have for visitors when you have your baby?

Obviously wash hands and no kissing but that’s all I can think of.

My first born was hospitalized at 6 weeks old because he got RSV and I really don’t wanna go through that again.

Edit: My mom smokes, my dad smokes, my brothers smoke, my brother in law smokes, and my fiancé’s mom smokes, I don’t really know what rule I can implement there but I really don’t want my newborn baby around 3rd hand smoke.