Glass table tops are great but they show off every tiny speck of dirt. Also, even the smallest scratch will show up under almost any light. To clean your glass tables, rub with a little lemon juice. Wipe dry with paper towels and you can use newspapers to polish to a sparkling shine. To remove small scratches, rub the scratch in a circular motion with a clean towel and toothpaste. This will gently buff out the scratch.