Since so many of us geeks are optically challenged, and some of us still wear glasses, I thought it might be useful to give you a handy tip for cleaning them.

So often today cleaning our glasses involves high-tech microfiber clothes, special cleaning solution, yada yada. But I have a way that does just as good of a job, doesn’t scratch the lenses, and doesn’t use any high-tech cleaning products. I use water. And dish-soap.

Step 1 ) Turn on water so that it’s warm, but not hot.

Step 2 ) Rinse off lenses thoroughly through the running water. Do not touch the lenses. Dust movement can scratch the lenses.

Step 3 ) Squirt a tiny drop of soap onto each lens.

Step 4 ) Add a small amount of water to the soap on one lens and then rub gently to wash. (Yes, with your fingers. The dust should have been safely removed already and the soap and water act as a lubricant.)

Step 5 ) Flip fingers over to the other side of the lens.

Step 6 ) Repeat steps 4 and 5 for the second lens.

Step 7 ) Rinse the soap off of your hands.

Step 8 ) Turn the water to full blast as hot as it will go.

Step 9 ) Thoroughly rinse the soap off of the glasses. There will be dots of water on the lenses. Don’t worry. We’ll get rid of them next.

Step 10 ) Turn down the flow of water to a low gentle stream, keeping it hot. Align your glasses so that the lenses are vertical, as if you were wearing them. Then slowly move each lens through the water stream sideways (like left side to right) so that the water falls on both the front and the back of the lens at the same time. This will gently pull away those water spots, leaving your glasses spot free.

Step 11 ) With you finger or a towel (depending on how wet you can stand your glasses frame being) dry off your glasses, being careful not to touch the lenses.

Tada! You have just low-tech cleaned your glasses to a spotless shine without any risk of scratching and without any special implements.