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Most people have figured out that you don’t need to pay a shop $70 for new wiper blades; just get a $15 pair at Costco and snap them in yourself like LEGO® bricks.
Here are three other surprisingly easy things you can DIY to save hundreds:
• Cabin air filters cost ~$10 on Amazon and are usually hidden behind your glove box.
• Engine air filters cost ~$15, and once you find your engine air box, it’s just a matter of popping the tabs and replacing it.
• Washer fluid costs $4/gallon. Look for this cap in your engine bay and pour away.
– Chris Butsch, The Arizona 100