when pennies phase out - prices might round up instead of down. Not good.
They can do it so like maybe one can of soup costs 71 cents, another costs 74. They can just ring up the total for the entire thing at the checkout, and only then round up to the nearest nickel.
That's a good idea. Or round down to the nearest nickel.
Or - if its 2 or 1 round down. If its 3 or 4 - round up.
 
     
     
     
     
    
They should still count cents on electronic transactions.