It seems that scraping your windshield is one of the typical winter activities for many modern drivers. Despite the fact that this is a difficult and boring task, it also takes a lot of time to finish it properly.
The good news is that there is much simpler and more convenient solution. All it takes is a creation of a simple mixture. After that, you should sprinkle the windshield with it and the ice will melt right away.
So, forget about scraping your windshield, take one plastic spray bottle and pour a mixture that consist of 2/3 rubbing alcohol, 1/3 water and one tablespoon of dish detergent.