It always kind of bothered me that my likes on Instagram disappeared forever and there was no way to see all of the posts you've liked, but there's a way!
  1. Go to your profile and click on the settings button:
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    It's that weird wheel thing.
  2. It'll lead you to this page, where you click on "Posts You've Liked"
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  3. And voila. Now go forth and be reminded of all of the pictures you've liked:
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  4. This has been your friendly useless PSA.