Imagine you only had one cup to use for the rest of your life. What would be your pick for the best all-purpose cup? What qualities would you seek and does this cup already exist?
@MisterRogersSnapped That's not a bad pick. There are pros and cons about every choice it seems. I would miss being able to throw it in the microwave and having the feeling of holding a hot cup on a cold day. I would have to have a model that's not a PITA to clean and I could scrub the bottom. Glass and ceramic are my favorites, but there's no way they would last a lifetime.
@daniel Latte macchiato cup, I drink everything from mine (I have several.)
Pretty much everyone has gone with the mug form factor and I would add that a handle to hang or tie it is a must. I've spent entirely too much thought on this now lol. Something like a nano-ceramic material, a little like a seashell or teeth, might add enough durability to be another option other than metal. Metal is probably the most practical, but they have microwave problems, can have a weird taste, and can be subject to corrosion.
https://www.livescience.com/11696-seashells-strength-interlocking-bricks.html