If you're a Gen Z kid, then some of these things might be familiar. And if you don't, then you're about to get an education.
Twitter has been doing the most with the #90svs2000sChallenge, with users sharing pictures and memes of their favourite childhood memories, and comparing it to today's versions as they battle it out to see whose was better.
From handwritten notes to push pop lollipops, tweeps are digging deep to show just how much things have changed, or stayed the same.
Here are some of our favourites: