Goal:
How to lock a bathroom door.
Answer:
Close the door. Find the locking mechanism like a knob or lever, and twist it either clockwise or counter-clockwise until the lock is engaged. Try to open the door to see if it's properly locked.

Goal:
How can I make a cool ink stamp quickly?
Answer:
Cut a pod of okra horizontally, dip in ink and stamp on paper for a cool design.

Goal:
To clean up the wood shavings created by CNC woodworking machine.
Answer:
Use a vacuum to clean up the wood shavings.

Goal:
To make the front panel of a wooden doghouse easily removable.
Answer:
Attach the panel with loose nails that can be pulled out.