As a non-American I'm always surprised that people want them to go away. I can't imagine buying anything without using coins. Is every price rounded up instead

As a non-American I'm always surprised that people want them to go away. I can't imagine buying anything without using coins. Is every price rounded up instead of the deceiving 99 Cents? Do you buy two items for 50 Cent each instead of one so you can pay with a bill?