Rock chips in your car windshield are just part of driving Houston’s busy freeways, but if you don’t repair them quickly, the chips can crack and spread. Channelview viewer Maria Pena is testing the Rain-X Windshield Repair Kit. The product was $10.97 at Walmart. It claims to save you time and money by repairing the damage yourself. Drive Houston freeways long enough and it’ll happen.