Goal:
To prevent water from growing bacteria, you can
Answer:
Use a small amount of vinegar or bleach

Goal:
How to paint old keyboard.
Answer:
Place keyboard on newspaper and spray with spray paint.

Goal:
How do you peel asparagus before cooking?
Answer:
The bottom woody inch or two of any asparagus should be discarded. Whether or not you peel the stalks depends upon their thickness. The larger the asparagus, the tougher the peel, and the more likely they are to need peeling. I usually peel the stalks if the asparagus is 1/2-inch in diameter or larger.

Goal:
Easiest way to make a stencil for screen printing.
Answer:
Place a sheet of acetate over the sketch and trace over the lines with a sharpie.