1. pano po matatanggal yung maliliit na gasgas sa windshield?
2. pede po ba to na DIY? or do i have to bring the car sa auto detailing shop?
3. san kaya meron malapit dito sa antipolo/cainta are na detailing shop na pede and how much kaya?
1) depends on how deep, in most cases, they can't be removed without distorting the glass.
2) again, it depends, if it's a scratch, a detailing shop can't resolve it. But if it's only a very very light scratch (like wiper blades + dust), it can be polished out by a detailer.
3) I can do it for you if you like... but again, parameters above has to be checked kung kaya.
If it really bothers you, just replace the glass... di naman gaano kamahal ang replacement... mine is due for replacement soon.
Alfa: actually, any oil-free light compound would work great for glass, and Autosol is a great polish... Best metal polish for the price, you can use it on glass as well, but not as effective on films like Strip-It.