Is cash still king?

[admin]

7. Is cash still king?
King? Maybe. But Not Alone
 People still use cash, but cards and phones rule now. Take everything. Don't limit your sales.
Give Options
 Grandpa pays cash. Teen swipes. Mom uses her phone. Smile and take it all.
Avoid Turning Customers Away
 "Sorry, we only take cash" is code for "Go buy from someone else."