Make sure you have a Living Will and a Will - update it after any changes.
To avoid any unsettling, upsetting or nasty surprises for those you leave - make sure you have those documents and that they are up to date.
I could regale you with the horror story we are facing because my DH's X-W didn't have a Will, or a Duraable Power of Attorney or anything. I also could share with you the nightmare that were her last few days because the X-W's "boyfriend" was making her medical decisions and he too is an alcoholic. My DSD is the X-W's only living relative and she still has no voice due to a lack of documents.
Suffice to say this is way more stressful.than it should be and way more stressful than planning a Second Wedding.
So please ladies make sure you have a Will. a Living Will or a Durable Power of Attorney.