This is my favorite

Obsolete Skill: Blowing the Dust Out of a Nintendo Cartridge

Nothing beats the tried and true “Gerblich Method” of wrapping the cartridge under your shirt before blowing. When using this method, use a steady stream of air up and down. Do this at least three times. When completed, switch to spurts of air. This always works, and always on the first try (and no Trey, I won’t try this on you).

I think I’ll be adding this to my resume alongside “Sandwich Artist.”

*While looking for a picture of someone blowing on a cartridge, I came across this clip of some chick doing it wrong.