How Often Should the Postal Service Deliver Mail? [POLL]

California Republican Darrel Issa wants to reform the United States Postal Service. Right now the USPS is around $100 billion in debt and things don't seem to be getting better. Issa wants Republicans to go along with him in cutting mail delivery to only 5 days a week after 2017. What do you think? How often should the USPS deliver the mail?