The cost to make a penny coin today exceeds one cent, so the US govt is losing money on every penny it makes. Coordinate a coinage change to elminate the penny and the paper dollar bill. This will lead to universal use of the dollar coin which lasts longer than a paper dollar bill. This will result in savings on printing dollar bills. All cash registers would still have the right number of compartments for current coins by making the change in coinage concurrent.
Idea No. 3939