My in-laws already prepaid for their funeral burial and arrangement and my wife's, and his own fathers as well. So when it all happened, it as a lot less stress. It was still emotional, but everything was handled ahead of time.
It might seem morbid to think about, but if you can preplan your funeral arrangements so your loved ones don't have to, it's definitely one of the better things you can do. Also leaves them free of having to foot the bill.