Removable and reusable protective envelope to display document

A method of displaying a document on a motor vehicle, the method comprising:

• (a) inserting a document into a device for displaying a document, the device comprising:
• a front planar sheet and a rear planar sheet, each sheet having three edges that are coterminous with and permanently affixed to a corresponding edge of the other sheet, thereby forming an envelope having three sealed edges and an open end, wherein the document is inserted through the open end;
• an adhesive strip affixed to either the front sheet or the rear sheet and positioned across the open end between the front and rear sheets to selectively seal the open end;
• and
• a first corner seal and a second corner seal, each extending onto but not all the way through the adhesive strip on opposite ends of the open end;
• (b) sealing the open end;
• and
• (c) affixing the device to a window of a motor vehicle such that the rear sheet is against the window;
• wherein, when the open end is sealed, the device is waterproof.