If you are about to be admitted to the hospital overnight, categorize each of the following as either useful or not useful: a phone charger, a camping tent, reading glasses, a cruise ship, 10 bags of lumpy cement, a favorite blanket, and headphones, and a grand piano.
When you are staying overnight in the hospital, it would be useful to have a phone charger, reading glasses, a favorite blanket and headphones. It would not be useful to have a camping tent, cruise ship, 10 bags of lumpy cement or a grand piano.