Hello Rob,
I'm extremely sorry to hear of your loss my friend. She was a beautiful girl indeed and also very lucky to be a part of your awesome family for 13 years.
I totally agree with Sue that when they leave us, they take a piece of our hearts with them. I know that I can remember with great clarity every 4 legged friend that I've ever been lucky enough to have had in my life, so as long as we remember them, they will always remain an important part of our lives.
Richard