input question: How to remove dust from lamp shades.

output answer: Rub the shade with a lint roller.

input question: How to groove the edges of leather.

output answer: Using a grooving tool, drag the tool in a straight line through the edges of the leather where you will be stitching.

input question: How to clean narrow-neck bottles without brush?

output answer:
Take a spoonful of rice and dish soap. Tip the contents of the spoon slowly into the bottle.Fill up the bottle about halfway with water.Cap the open end with your finger and gently shake, rotate, and invert the bottle, so the rice grains come in contact with the glass.