Lockers prevent being thrown around while in a vacuum, I believe. Better bring internals and/or get out of there quick though, they're not airtight.
Only tested this with an emergency locker.
Having a pickax (possibly drills as well) in your inactive hand allows you to mine rock by walking into it, like a Ripley.
Using the Walk movement setting while space walking makes you less prone to slipping, at an obvious cost of speed.
There are lots of things you can deep-fry, candefy, etc., but matches are not one of them.
The suit storage unit on the mining asteroid can decontaminate a suit and helmet, as well as automatically fit it for Skrell, Dionaea, Unathi, and Tajaran use.
More to come.