Us dollar collapse? What happens to the average citizen?

Well, contrary to what El Americano said, I think it's simpler to say that money stays the same while prices rise. If there is more money floating around than there is products, than the products' prices will automatically rise to balance it out. Your car payment, as you said would be raised twice the amount as it was before, but you will most likely be paid the same salary (x2), so it really wouldn't make a difference, except everything has a higher "price" than it seems necessary to be the same as the dollar value. The problem with this is that it take a very long time to completely balance out salary with expenses, yet many people think of printing more money as a solution to debt, which it is not. Think about this: Most people talk about how gas used to be 10 cents. They also got paid a lot LESS for the same jobs they could be doing today. It's all about balance of salary and expenses.