Well, I don't really think that this suggestion will be actually handy for anyone of us, but it's still pretty cool to see a camera floating in zero gravity, no? :D
Anyway, Chris Hadfield, an astronaut which is currently on the ISS, did this video where he explain how he takes some landscapes from above us.

Btw, the "Sunny 16 rule" he mentioned, is this rule.

(via PetaPixel)