Too many times we accidentally write on our favorite apparel. Oftentimes, too, it's ballpen. It may not be our own fault but of those around us, still, the damage has been done.

Before you freak out, save your temper and spend some patience. After all, it's good for your health....But! How are you going to remove those ballpen marks?

Simple. Before washing, get a hairspray and spray on the ballpen mark. Don't pour, just spray, little by little until the ink vanishes, brought to thin air by the hairspray. Try it on scrap cloth. I said accidentally marked on, ok? Not purposefully written on that fills the cloth with too much and even heavy ink. :)

Principle: an on/off switch cuts off or allows electricity to pass through beyond the switch to its destination (like electric fan, radio, AVR, ref, etc.).

Imagine a plug. It has two prongs, because electricity needs a positive and a negative to work. Without the other, it will not work.

For simple explanation, check your AVR. The portion from the plug. Flat cord is usually used so you see two cords stuck to each other as one.

plug prong 1-------------->to switch-------------------->to AVR

plug prong 2------------------------------------------------>to AVR

When you push on the switch, a mechanism inside will touch the cord from the plug side and the AVR side which makes the circuit CLOSE...to make electricity flow.

When you push off the switch, that same mechanism detaches from the same cord terminals which makes the circuit OPEN...to stop electricity.

If the power supply that you have (refer to Styro Cutter post) has no switch, this is how you can add one.