Goal and options: How can I get crayon off of my walls?
output answer: Take a rag and some all purpose cleaner and rub the crayon off.

Goal and options: To reheat food,
output answer: place food into a microwave safe dish and place into the microwave until warm.

Goal and options: To make a room smell clean and fresh,
output answer:
spray furniture and curtains with a lightly scented fabric refresher.