A. A ski helmet and goggles make a great combination. Firstly check you have a good fit on your helmet. Your helmet should feel snug, cover your forehead and finish just above your goggles. There should be no gap or only a very small gap between the two. You can then either wear your goggle strap outside or inside the helmet – both are fine for safety purposes, so long as the helmet fit remains snug.
It is possible to buy clips to keep you goggles from slipping around if strap worn over the helmet. Some people report wearing the strap on the inside is more comfortable, but it really is down to personal choice.