Preserve chalk drawings from being damaged
When you have children, you wish to preserve happy moments for as long as possible. Few activities are more pleasant than drawing with chalk on the driveway. The unfortunate part is that they do not last for long, and it is always sad to see the works of art go away. However, there is something you could try to make them last.
Sealing them in with a protectant will protect them against the elements. The good news is that you most likely have a substance that will serve that purpose in your bathroom cabinet. Hair-fixing spray can prevent chalk drawings from smudging. Just spray it all over the artwork and it will stay locked in place.