Goal and options: How do I get the mailman to stop leaving packages outside my front door?
output answer: Leave him a note on the front door to leave them in the back of the house.

Goal and options: dumbbell
output answer: holds paper down

Goal and options: Can you make house door numbers from cardboard?
output answer:
Using a stencil and a sharp blade cut the numbers out of the cardboard. Make sure to stick them under an overhang so that they don't get wet when it rains.