I was thinking the same thing. I have plenty of treated salt but it doesn’t work as well on a stone driveway as it does on paved, it just melts through into the ground, which makes the mud that much more ‘fun’. Thus I always have sand on hand too. #1 son just called, they did his interview virtually due to the storm and he got the job he wanted with American. He’s done really well for himself so a proud dad here just wanted to share.