Generally we scrape the ice off with one of those scrapers unless you're lucky enough to have a garage, of course then you just have to hope the ice and snow isn't completely blocking the door to the point where you have to shovel.
It's more of a pain now that I live in the south since I fully expect the unnatural warmness all year round to NOT include icy windshields, but it still happens on occasion.
What do I usually do in the winter? Stuff like this, every chance I get.
The Adirondacks in New York State.
It's not like I actually live on a mountain... Just within a short drive of them.
This was their turf, back in the day. Now, though, the Mohawks tend to hang out on the St. Lawrence River.
Put warm water in a ziplock bag. Use the bag like an eraser to clear the ice.
If you get bored, build a snowowl ...