Most Important Chess Possessions

I was just thinking about my most important chess possessions. I thought perhaps it might be my books. Then I realised that you could always replace them. So I asked myself again what might be my most important chess objects that I could not possibly let go. More than anything, it's my scoresheets. I have a few hundred of these by now and it all began way back in '96. Some games are in my database, but the vast majority haven't even been looked at since the games were played. Aaahh...if only I had more time.