Comment by Yaered:
"Another decent tip overlooked, not holding an item allows you to move faster and you need the few precious seconds to make it to the surface for oxygen."

Of course, while you can get oxygen tanks more or less easily, when you're getting creepvine for the silcone rubber, you need to get air quick, not to mention get away from stalkers. The same is true getting titanium.

You'll only be truly safe in the seamoth.