For hot drinks (teas, coffee & etc) I prefer a simple 0.7l thermos and small chinese teacup. Put the hot stuff in the thermos it will stay hot for at least 6 hours, put a bit of the hot stuff in the cup, since it's small it will get to a comfortable level of hotness in 30 seconds. Drink it slowly and refill. |

Works in the park/library too and you only heat the water once and don't need electricity to keep it hot!