I cleaned my PC case out. Dust, everywhere. So many dead bunnies.
I forgot to take pics before the chaos but I remembered in time to take a pic of one dust filter as you can see below.
Before:
After:
My temps have dropped by around 10 degrees Celsius cooler, my PC runs quieter and my CPU usage is no longer at a constant 12-20% and now sits stable at 2-4%.
Overall it was pretty fun, not done some DIY computer fixes/changes in a while. Next up is upgrading the CPU to a 4770k, my current one is beginning to fall behind, a lot...