Goal:
hook
Answer:
could break through a glass and make it useless.

Goal:
To sharpen a knife,
Answer:
use a wet stone and rub it along the length of the blade at a 45 degree angle to the blade edge.

Goal:
plastic wrap
Answer:
can be cleaned by baby wipe

Goal:
To vacuum under the couch,
Answer:
you need to pull on the couch to move it in order to access the floor underneath it.