Video - Windshield chip or crack DIY repair
How to repair a windshield chip or crack and save money
The video below shows how to fix a chipped windshield.
This method works for car windshields only: it couldn't probably be used for a crack on a smartphone screen :)
The procedure is quite easy and can save you a lot of money: it costs about $10, while a repair place can charge about $50 to fix a crack, and a windshield can cost you over $500 to replace.
And just in case you're wondering, this is the Permatex 09103 Windshield Repair Kit (at Amazon.com) used in the video.
However, there are many other excellent window repair kits available.