How do you clear ice off your windshield?

Just splash a little warm water on it. This isn't Alaska; it won't re-freeze. I've been doing it for years. It takes about 1/2 a bucket and a saucepan for splashing do to the entire minivan in under a minute. Put said bucket in the trunk, then drive away.

How stupid to limit the responses to just one method. I will bet that many if not most of us will combine several. Dumb, dumb, dumb.

I actually scrape and then start engine and let defroster and window defoggers take care of the rest.

I do NOT use warm water method. There is a risk of cracking the glass from thermal shock with this.

Will the hot water method actually risk cracking the glass? Heard that, but is it true?

It doesn't super cold here in the NW. So maybe it is not as big of a threat/possibility.

Yes, hot water will most likely crack a cold windshield. Think about it for a minute. You have frozen glass, you add hot water, rapid expansion causes material to fail, e.g., cracked glass. Sort of a "duh."

If you're going to use water, don't use "hot" water. Lukewarm works, but it DOES refreeze if it is cold enough. I used to do this as a teenager.
Nowadays, I use one of those spray on deicers, which work quite well, and only cost a few bucks.

Yes, Val is correct. It's silly to spend a bunch of time de-icing your windshield. I've poured boiling water on my windshield numerous times. Modern plasticized glass doesn't crack from extremes of temperature.

I have used warm water since I moved up from California in 1995 because I didn't know any better. Have 2 cars now both purhcased in 2003 and even on the cold years of low 20's I poured warm water from top of windshield due to laziness.
Been doing this since 1995 and no cracks even with a chip in one cars glass.
I don't think it's a good idea however, but it works. Note: DON"T use a bunch of water as it runs down then refreezes on the driveway making a slip hazard. Done that, not very bright of me.
Honestly, use the scraper it takes a whole 2 minutes longer and burns calories that you don't need anyway.

I open the kitchen window and use the sink sprayer. I start warm and turn the heat up after the glass is clear, all in the comfort of my pj's.

Many years ago I bought a bunch of discontinued hallway rug runners, each about 3 X 6 feet rectangular in length to be used to cover the windshield and rear window on our autos and then in the morning, just remove the rugs over the windshield and WhaLah, no ice to scrape, works like a charm, I am ready to go ASAP. Was soo cheap, about $3.99 each, I bought a dozen and handed them out to the neighbors in the cul de sac. Only bummer is nothing works to cover the side windows, so I have to scrape those. Maybe I will splash the lukewarm water method.

I moved to California. Easy Peasy.