Credit cards and ATMs won't work during a US wide bank holiday.
How could we (that actually pay our bills) get them paid if ONLY cash would work for 7 days? Not sure I buy it. In fact, I say no way it will happen - NOTHING could get done for 7 days and jobs would be lost at an alarming rate.
I frequently travel on a couple hours notice for my job. This means getting in my car, driving to the airport - buying a ticket on the company cc, staying in a hotel on the company cc, driving a rental car on the company cc. Does this mean I can't work for 7 days?
Still - a great idea to always have enough cash on hand but I just don't see this ever happening.