We just gave out DD's party invitations for next month - the nursery gave them out to parents for me. I'm really nervous about doing this party - I hate parties but DD will be 4 and REALLY wanted one so I bit the bullet. When are people likely to RSVP? Please tell me I won't have to chase people! And if I do what do I say without sounding like a loon demanding to know if they are coming or not? I don't knoe the rules of all this