It's time to clean the attic again, and it's not one of your favorite things to do? Well, you might find some really valuable vintage things there, and then it's definitely worth the effort. Old-school typewriters from brands like Remington or Hermes can fetch you hundreds of dollars. A vintage Sennheiser mic sold for almost $160, and it wasn’t even working. Video game consoles and games from the 80s can help you big time, especially if they’re unused or rare editions.

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