What tool, device, or software that you used a lot, but then disappeared from your life (or from the world), do you miss the most? 
@Em0nM4stodon My Braille Notetaker I used in middle and high school. I did a lot of my schoolwork on it. I still have a notetaker, but never really need it since I have a laptop.
@Em0nM4stodon Firefox OS (#fxos)
@Em0nM4stodon wordstar word processor
@Em0nM4stodon A laptop with an exterior battery-level indicator.
@Em0nM4stodon Google Reader and Hypercard pop up immediately, I really did like using Dreamweaver once upon a time
@Em0nM4stodon I miss Urly Warning.
@Em0nM4stodon Google Reader.
@Em0nM4stodon The old Apple Mac "Graphing Calculator" app.
@Em0nM4stodon StumbleUpon.
@Em0nM4stodon I miss both my iPod 3rd gen and the Psion 5MX. Those two devices were almost physically attached to me for ages and I still think they’re both better than much of what we have today.
@Em0nM4stodon
Light switches.
(@m0rpk filled the house with smart bulbs & now I have to find my phone to make the lights do stuff)
@Em0nM4stodon Niche amateur radio tool ‘N1MM’. Like many specialist hobby programs, it only runs under Microsoft Windows. My switch to MacOS for unrelated reasons pretty much ended my involvement in amateur radio contesting. I’ve yet to find an adequate replacement.