Wow, SC runs on a used furnace filter? Oh wait, there was a computer underneath all that dust! lol
My first gaming laptop started developing weird graphics artifacts after almost a year...couldn't figure out what was going on. For some reason I decided to open up the bottom, and when I saw all the dust down there, blew it all out with canned air & vacuumed it all out. All the problems went away!
Ever since then, I try to clean out my computers at least once a year, 6-9 months preferably. It is amazing how much dust gets into things...
I just grab one of my cats and use it to dust out the inside of my case. Just to be really sure i make sure to build up a lot of static electricity on them to make sure it attracts all the dust. That's the best method right?