Guest Dinner Seating

Hello everyone! I’m having trouble figuring out how to arrange the seating for dinner. We have 300 guests coming to our wedding and originally I was planning to do escort cards but not place cards, the only problem is they are around $1.00 a piece, I’m not sure if I can justify spending $300.00 plus tax and shipping for something that will be thrown away at the end of the night. So then I thought about doing a large seating board, which would solve that issue. But then I come to the dilemma of “how will the hotel know what guest ordered which plate of food?” I would almost have to do some kind of place cards if if I did a board, wouldn’t I? What are you guys doing, what are your opinions? Any advice is appreciated since I’m only 60 days away from getting married!