Do away with dollar bills and pennies.

The dollar bill and penny are becoming more and more of a burden to the US economy.
The penny costs exactly one cent, and it takes 1.7 cents to create a penny. Money is wasted in this process, spending money to create something that is already useless.
Money serves a purpose: to facilitate the exchange of goods and services. Pennies fail to do this; for example, try going somewhere and paying for your order in pennies.
Several countries have removed their pennies, and exactly nothing happened.
There is a similar situation with the dollar bill. The Administration should consider replacing the dollar bill with coins. There are over a billion dollar coins already in the United States, they circulate longer, and they will cause people to spend more money due to the denomination effect.