Self-Check

If you don't want to wait in line,
(Impatience is a trait of mine)
It's time to try (less pain-in-neck)
The registers that say "Self-Check."

You simply scan each item in
And your adventure will begin 
As items roll along the belt
So fast your ice cream will not melt!

Whatever you've found on the shelf,
Of course, you'll have to bag yourself.
For smaller orders, it's a breeze;
Just you alone you have to please.

There is a downside to this, too.
As cashiers go, now, just a few
Will have their jobs once we accept,
Despite our qualms, we're not inept.