Do you have a living will? Would you be left on life support forever or pull the plug quickly?
I have one. My husband gets it all and makes all decisions if I go before him. If not, it's up to my brother(or any kids he has, if any, ever) and the nephew.
I don't have it in writing, but it's widely known that I don't want machines breathing for me. I'd rather die when I am meant to.