Replace Ulysses S Grant with George Washington on the $50 Bill, and replace the $1 & $2 bill with the $1 Sacagawea coin.

-Ulysses S Grant is one of our worst presidents in US history, and does not deserve a place on our currency. Just as Andrew Jackson was removed from the $20 bill, Grant should be removed from the $50.
-We currently have over a billion $1 coins sitting in storage, that's $3 per person in the US. These coins have a estimated lifespan of ~30 years, while the average lifespan of a $1 & $2 bill is only 18 months. We could save millions of dollars every year by no longer printing & transporting these bills, as well as limit the production of $1 coins to only Sacagawea coins.