78 percent of Americans have less than 50 bucks in their wallet.
A Bankrate survey also finds half of Americans carry 20 dollars or less and 9 percent don't carry any cash at all.
Only 7 percent carry more than a hundred bucks.
Bankrate.com's Greg McBride says more and people do their transactions with cards or handheld devices.
But it's also because so many of us have less money to carry around.