Question:
Goal: Dust the lamp shades quickly.

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
Use a feather duster, which traps the dust and makes it cling. Takes 5 seconds per lampshade.

Question:
Goal: push pin

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
keep paper on a wall

Question:
Goal: How do I avoid getting excess spray adhesive in the mold when making concrete countertops?

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
use a straight piece of cardboard to shield the overspray