but some days thats not feasible.

Wat. Some days it isn’t feasible to have your windshield free from ice while you’re driving???

If your car doesn’t have a function to pre-heat it, you can buy a pre-heater for not very much money.
You can buy a windshield cover to put on in the evening for even less money.
Or put 2-3 hot water bottles on the dash first thing in the morning. That’s enough to melt the ice on the windshield.