I recently discovered this. You can survey for Open Street Map easy if you use your camera with location tags turned on. Take lots of pictures of anything that could be added or updated while you shop, walk or drive. Then later you can go through your pictures and use the location to find where they were taken. Compare the location tag against satellite images, and add everything you find useful in your photos.

I recently went on a trip and I’m adding businesses, addresses, stop signs, speed limits to OSM this way and its really helpful. Ive been able to add so much more details that I didn’t even know I saved in my photos. Try it!