Our reception is going to be tables of ten, with plated main course. What is the best way to have a seating chart done if we need to have guests at specific seats so that the waiters serve each plate to the right person? Is a seating chart necessary if there's only around 50 guests, or can we get away with just place cards at each seat and guests find their table that way? If a large seating chart is ideal, what is a less expensive way to do this?