I thought I had posted a before picture of my small room in the basement (no it's not a dungeon!) and then I found the picture below and my jaw dropped.
No wonder why I avoided that room. It was crazy!!
Now everything is in it's place and there is empty space on the shelves and in some of the small bins (which are semi-transparent).
One thing I would recommend when you have a storage space is to not put everything in big storage bins. I had no idea what was actually in the room and the towering bins made it impossible to find anything.
Every day I just cleared something out of this room. A lot of things went to charity or to be sold. I started in one corner and just worked my way around the room because when I looked at it as a whole I was paralyzed with indecision.
I hope this inspires you to venture into the spaces you have forgotten and clear them out!