You will receive either a pink card or a green card in your mailbox. The pink card means you have received a package from USPS (United States Postal Service) that did not require a signature but is too big for your mailbox. The green card means you have received a package for which you need to sign (i.e. UPS, Fed Ex, Federal Express, etc.).
You will need to show your Student ID to pick up any package. NO ID, NO PACKAGE.