I've been asked to make some cakes for a wedding.  I'm not doing the cake for their photos as I have never reached that level of expertise.  This will be my gift for the couple.  They want enough cakes for 300 people.  I was thinking 8 12x18 cakes, but after reading some posts on boards and boxes, I'm wondering if I should go with 9x13s.  They will all be very simply decorated in the colors she is using.    I would appreciate any advice you can give me.  I've done...