My FI and I are not having a formal exit from our reception (no sparklers, ribbons, rice, etc.), partially because a lot of the options "allowed" at the venue cost a decent amount of money that we don't have room in our budget for anymore. My stepmother may or may not be renting a limo for us to leave in but again, no formal exit like you usually see. Is there a good way to signal to guests that the reception is ending without basically kicking them out? I don't want to have a fun, well thought out reception ruined because of a rude or abrupt end...