Activity for Lillie

We are having our wedding at my fiancées church and we booked a different location close by for the reception. After booking the reception venue a few of my family members have said that some people might not come to the reception. I was wondering if...

What is the best company to use to get your invitations printed and also has the best price

Many months out from your wedding is it good to send out save the dates? And are they different from Invitations? And if they are how far before the wedding do you send out invitations?