Abstract: A navigational aid system for fishermen comprises a computer that is connected to the Internet. The computer accesses a high resolution map in the vicinity of a fishing boat. The map depicts the ocean temperature and depth profile in relation to marked latitude and longitudinal indicators. A specialized GPS system in communication with the computer depicts the latitudinal and longitudinal position of the fisherman's boat. The computer executes a separate program that has a transparent window overlaying the map. A user selects two points, one point at a time, on the map and enters corresponding latitude and longitude bearings consistent with those shown on the map. The separate program receives the GPS data and plots the boat position in an orthogonal coordinate system based on the two points selected and their corresponding coordinates. The map is optionally provided with data concerning weather and buoy or wreck hazards in the vicinity of the boat, together with details concerning the coastline.

Abstract: A credit transaction enabled cell phone has its back removably attached to a plate by a double-sided tape or clamps. The plate is attached to a hinge, which carries a U shaped credit card retainer second element. A credit card is carried by the credit card retainer second element in between the two arms of the U shape. The interior surfaces of the arms of the U shape are rubberized, and apply compressive forces to the credit card, securing the card by friction. The hinge may be opened from the closed transpiration position to extend the credit card from the cell phone, and swiped in a swiping credit card reader, using the cell phone as a handle. The credit card may be extracted from the U shaped credit card retainer and used for manual imprint or with an automatic credit card reader, and replaced after use.

Abstract: A credit transaction enabled cell phone has its back removably attached to a plate by a double-sided tape or clamps. The plate is attached to a hinge, which carries a U shaped credit card retainer second element. A credit card is carried by the credit card retainer second element in between the two arms of the U shape. The interior surfaces of the arms of the U shape are rubberized, and apply compressive forces to the credit card, securing the card by friction. The hinge may be opened from the closed transpiration position to extend the credit card from the cell phone, and swiped in a swiping credit card reader, using the cell phone as a handle. The credit card may be extracted from the U shaped credit card retainer and used for manual imprint or with an automatic credit card reader, and replaced after use.

Abstract: A navigational aid system for fishermen comprises a computer that is connected to the Internet. The computer accesses a high resolution map in the vicinity of a fishing boat. The map depicts the ocean temperature and depth profile in relation to marked latitude and longitudinal indicators. A specialized GPS system in communication with the computer depicts the latitudinal and longitudinal position of the fisherman's boat. The computer executes a separate program that has a transparent window overlaying the map. A user selects two points, one point at a time, on the map and enters corresponding latitude and longitude bearings consistent with those shown on the map. The separate program receives the GPS data and plots the boat position in an orthogonal coordinate system based on the two points selected and their corresponding coordinates. The map is optionally provided with data concerning weather and buoy or wreck hazards in the vicinity of the boat, together with details concerning the coastline.