I got an SGP AF screen protector, which I love and hate. Today I hated it so much I had to replace it with a clear protector that came with the Nude case. Then within 5 minutes I realized that I can stand blur and grain but not glare and reflection. So I tried to reapply the SGP AF, which was already covered with dust, and here's how I did it. I covered the sticky side of the screen protector with 2" scotch packing tape. I mean, I covered the whole sticky side of the protector with multiple rows of tape - basically to make the "adhesive protective film". Then I removed it as I reapply the screen protector from the bottom of iPad - pretty much the same way with the original film. It perfectly removed all the dust, and I again got a dust-free screen protector on my iPad - without using a single drop of water.