If you are cleaning glass without streaks, start by buffing it. This will smooth out any rougher spots and make the glass easier to clean. Next, use paper towels to blot away the excess moisture. If there are still streaks, try using vinegar instead. Vinegar is a natural cleaner that can help dissolve any proteins or oil that may be present on the glass. Finally, distill water onto the glass until it reaches a gentle simmer and then use a soft cloth to wet the cloth and wipe away the vinegar residue.