I have a Mid-2009 MBP. When I upgraded to a SSD, while my laptop was open I simply removed the fan and cleaned it a bit. As far as I recall, it came off easily with just a few screws and a connector.

Personally, I prefer this channel on YouTube...

Well, if you ever find yourself IN the toilet, then it could possibly be the top right corner...

The browser should have a setting, mine has one named "Remember form data"