I like using a travel mug even at home because otherwise my coffee gets cold before I finish it.

I had a nice mug that I used for years but dropped it on the sidewalk and it shattered into bits. My housemate got me a lined stainless steel one, but one day I realized that water was getting trapped in the interior part of the lid and there was mold in there!

I have a new stainless steel one, and it's ok, but the lid doesn't screw on, if it tips the lid just falls off. 😡

What's a good brand?