- I need some new mugs, I don't have enough mugs
- I like double-walled glass things, these double-walled glass ones seem both reasonably priced and nice
- Oh. These insulate too well. If I make tea in one of these mugs it will not be at a drinkable temperature for a good 15 minutes.
(they're still perfectly good for coffee or any kind of drink that you pour in from another vessel... the specific use case of dropping in a tea bag and following with boiling water? kinda fucked)