Geotagging pictures - this is idea to tag your photos with information concerning the location that they were shoot. If you travel a lot and wish to remember exactly where each picture was taken this little gadget named "Photo finder" might be of interest.
This gadget is basically a GPS receiver and card reader bundled into one. It keeps track of everywhere you’ve traveled via the GPS signal and logs exactly what time you were at each location. All you have to do is carry it with you when you’re out snapping pics. When you’re done at the end of the day, just pop in your SD card (or use it with a USB card reader if you don’t use an SD card) and it will automatically assign a geotag based on the time each photo was taken.
I am not sure how it will work with many RAW-formats, but if you using only JPG-format, then all is good
