Was driving on the expressway and heard a benign sounding tick -- thought nothing of it but when I got home and had a closer look I discovered a significant chip on the windshield to my dismay. I took it to the local glass shop and they recommended to have it fixed as it could spread. I went ahead with it and it cost me $50.00. I am quite satisfied with the results as it is barely noticible now. I think I am the only one who can see it now.