harvest error_messages_for to use on redirect?

Hi-

I've seen this posted a bunch of times but haven't found an answer. I want to have multiple forms/pages map to one controller so I don't have to duplicate my controller logic, then, render the sending pages. To do so, I was hoping to just render error_messages_for on the sending page. But I have learned you lose this on redirect. Is there a simple way to render error_messages_for to an array or something then pass that to the submitting form? Has anyone come up with a workaround for this?

Thanks, Dino