Chalk Board

Does anyone use Chalkboards for specials and other promotions?

Do you use chalk or chalkboard paint?

What works best?

My whole menu is on chalkboards. Im not fond of the chalk. My opinion I love the chalk markers the colors are more vibrant and more colors than chalk. Its cheaper to go to home depot and buy the chalkboard paint and primer also more durable than the boards I bought at art and craft store