7 Up Gold would be my vote. Good stuff.
McCormick used to sell a pizza seasoning in their grinder bottles that was delicious and could make any pizza better. I went so far as contacting them about it, and they told me they don’t even sell a comparable herb mix anymore.
The headphone jack on cell phones. Thank you, Apple, for your “bravery” that slimmed down the phone 0.0 nanometers.
Not an item exactly, but IMDB discussion boards.
Some were toxic and all were difficult to moderate but, damn, was it excellent for analyzing and discussing films, and getting others’ takes and interpretations.