Create a solution using equal parts of ammonia, isopropyl alcohol and water. Funnel the solution into a clean spray bottle. Mist the surface of your stained table liberally. Because the stain will be softened, there will be no need to scrub. Simply rub the stain with a clean cloth. If the stain stubbornly remains, try the next step.
Spray a thin coat of oven cleaner on the stain. Let this sit for one hour. Dampen a clean cotton cloth with warm water, and wipe the oven cleaner from the stain. If this does not remove the stain, move on to the next step.
Pour vinegar onto the stain. Let this sit for one hour to eight hours, depending upon the age of the stain. Wipe the vinegar off using the rough side of a dish sponge. Since vinegar is lightly acidic, it removes mineral deposits and grease stains.
Polish your freshly cleaned glass tabletop with lemon juice and newspaper or a microfiber cloth, which you can purchase at the dollar store.
Clean your glass table daily, especially after dining at the table, to prevent stains from setting and sticking.
Inspect your freshly cleaned glass table for minor scratches. Determine the severity of the scratch by carefully running your finger along it. (If you can tell that the scratch might cut your finger, do not attempt to treat it yourself, but call a professional.) Squeeze a small amount of toothpaste onto the scratch and the area around the scratch. Wait ten minutes, and then cover your index finger with a clean cloth. ub the surface. Repeat until the scratch seals. If it doesn't, call a professional.