Activity for Brit

We're having our reception at a restaurant following a small intimate ceremony. We've only invited 27 people and we will all be seated at one big table. I'm wondering if we should prepare a seating chart or put cards down with people's names, or if...

My 13 year old daughter will be attending my fiance and my wedding this May. We'd like to invite her dad, as my fiance is actually pretty good friends with him (strange situation but better for everyone involved). However, my ex's girlfriend does not...