Redesign all US currency to be accessible to the visually impaired.

US paper money has no features that make it easy to distinguish for those who cannot see it clearly. There are no differences in size between different denominations, no braille to tell someone what number is on the bill, and while certain parts of the ink are slightly textured, these textures are both subtle and features that are fairly uniform between denominations, such as shirt collars on the people featured on the bills. Many other countries have different sizes for different denominations, and some Canadian money has a tactile feature. All US bills should be redesigned to be accessible without the use of vision.