What are some underrated features of your favorite packs?

Vampires: When I'm out hunting on a vampire character, I will often chat up my victim Sim in public space then use the "Chat Here" option to lure my victim to a more private space. If you end up accidentally bringing more than one person, I'll use the vampire command trait to force the unwanted person to leave. That way you can feed without negatively affecting relationships with any nearby Sims.