To do this, use either a dedicated chalkboard cleaning spray or a mixture of equal parts water and white vinegar to buff away ...

However, more effective cleaning, such as using water and vinegar, must be done once or twice a week to rid your chalkboard ...

Sidewalk chalk is made from calcium and sulfate ... Place the crushed eggshell and antacid tablet in a piece of paper. Place 1 Tablespoon of water and 1 Tablespoon of vinegar in each of two small ...