Whenever you finally look at your room or closet and decide "Sheesh, I need to clean this thing", you might come across some "lost" treasures. For instance, I was cleaning out my closet and found all sorts of neat stuff tucked away in my draws that I had forgotten about. It kind of takes you back to a time when things were much simpler, and your days were not filled with school or work. Some things you find might trigger certain memories. I found a note from a mystery crush back in middle school! Who would have known that I still had that if I had not decided to clean out my closet.
So if your room is looking something like this, might be a good idea to sort through some of that stuff! You never know what fun things you might find.