City Mailroom is always looking for ways to help our customers save money. City Mailroom coupons are a great way to make your visit more valuable and we’re constantly changing and updating our coupons, so check back regularly to find other fantastic savings on UPS Authorized Shipper Outlet, Print & Document Services, Poster & Banner Printing, Notary Public, Mailbox Rental, Passport Photos, DHL Shipping, FedEx Shipping, Professional Packing and more!.