While most of us take our eyesight for granted, there are lots of people on the planet who have to do without it. And believe it or not, some of them actually live happier lives than a lot of people that can see. Yet, in some parts of the world, due to poverty and poor medical systems and in general bad governing, there is still much that can be done for blind people.
#1 Guide dogs
Guide dogs are also trained, among others, to poop on command, so the owner can clean it up instead of the dog just going whenever he feels like it without his master knowing about it.