Well, I'll probably have about 30 guests, minus the 5 in our wedding party. If I did have an MC, it'd be two people who work really well off of eachother (my aunt an uncle). I just don't want everyone running around trying to help, and end up missing out or not relaxing and enjoying it. Like, our parents... they shouldn't be running around once everything has started. same with my grandparents etc.
If you aren't using an usher, mc, guestbook attendant etc (is there anyone I'm forgetting?), then how are you getting everything to work smoothly? How long does Mariana stick around - until the reception starts??