Okay so today I did a little experiment. I bought a can of compressed air for $8 and sprayed out my pc and its parts myself.
I've been running my pc for the past half hour and so far it is as quiet as when I pay $30 and have a pc tech do what I'm now guessing spray the pc with compressed air.
I feel like a jackass for paying someone to do this for me for so long. I had no idea if I did it myself I would get the exact same effect.
Anyone else have a duh moment where you've realized you've been doing something the wrong way, or taking the wrong approach to something?

I once replaced my entire PSU and case. The found out the power cable was broken. Duh, did not even come close to it.

I should really do that, I tend to just... you know... get in there and clean it out myself.

I was in a porta -potty, and I couldn't figure out how to turn the sink on. I was pulling on the little faucet thing, and was about to give up when my foot hit a stomp box thing that turned on the water.

Here's another one: I am a smoker, and one night I'd had a few. I lit 3 cigarettes from the wrong end in a row.
Not only is it a duh moment to smoke, but also a very duh moment to do this not once, not twice, but three times. I had an awful headache the next day... Cotton is not meant to be inhaled... or whatever's in the filters.

I messed up with the wiring for USB ports for my gaming rig when I was building it, and I mixed it up with some other stuff. Took me forever to figure out why my USB ports weren't working.

What crazy fantasy land are you from where porta potty's have sinks?
That's really easy to do. The manuals for motherboards are usually really bad and it's almost impossible to tell which pins are for USB, front panel audio, power buttons, etc. I've been lucky so far.

Yeah me too, if I'd not been so incredibly fortunate as to have, purely by chance, READ my motherboard manual, I might have made all number of cabling mistakes