I would take it and buy something.Because you never just find $lOO laying on the street.And we have to pay water,electric,and home bills.A one hundred dollar bill could pay bills.Or you could save up to buy an item.Such as a scooter,puppy,and a dirt bike.Or you could give it to your friends birthday present.There is so much things you can do with it.But Most of all you need to keep it.