Des, sorry you're having to go through all this, I know it can be very emotionally draining. I've been through it with both parents, they are gone now, but what I found most exhausting was all the decisions that had to be made and trying to make sure I was making the best decision possible. Especially with deciding what to do with their things, things they acquired over a lifetime. Now you're having to decide what to do with "things" but there are so many emotional ties to a great deal of them it can be extremely exhausting.
I wish you well, my friend.
Mack