How to sell or trade in your old Mac and save on a new one

Whether you’re planning to buy a new Mac or you got one for the holidays, your current Mac doesn’t need to end up in a closet. So what do you do with it? If you aren’t planning to give it to a lucky friend or family member, you can trade or sell it to help pay for that new Mac. Here’s how to get every last bit of value out of your old Mac.
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