At my school the rho gammas wait out front of the houses while their group is inside. The RG's would ask girls to leave their bags at the front door with them. Personally, I never brought a bag, my Rho Gamma had an emergency kit with things I would need like breath mints, clear nail polish, tissues, safety pins, everything
This really is a question for your Rho Gamma, she'll let you know how it will work for you!