Checking out in USD in multiple currency environment

[Ollie]

My shopping cart is set to multiple currency with USD as default. Currently, if a customer chooses a foreign currency, he/she will checkout in the selected currency and the email notifications will be in the same currency. Is it possible to have the cart keep the selected currency then change to USD at the very end of the checkout process? If so, how can it be accomplish?

[abantecart]

I am trying to understand. Do you want to prevent customer from switching currency from once added to cart?

Simplest solution is to remove currency block from layout in checkout pages.

[Ollie]

Do you want to prevent customer from switching currency from once added to cart?

No, I'm not trying to prevent customer from switching currency. The customer may choose whatever currency is available, but the final checkout has to be in USD. I already figured out what to do. I paid a developer a create a solution for me. By the way, if anybody needs the same solution, please contact me.

[abantecart]

It would be nice if you share solution, otherwise, no soliciting on a forum.