Since coins are more durable than notes and do not need replacement as often, many countries have replaced lower-denomination notes with coins to obtain a financial benefit, among other reasons. Six times over the past 22 years, the Government Accountability Office (GAO) has reported that replacing the $1 note with a $1 coin would provide a net benefit to the federal government of hundreds of millions of dollars annually. This book examines the net benefit to the government of replacing the $1 note with a $1 coin for the private sector and the public, and with a focus on the experiences of other countries doing so.