I use this for storage and transport:
https://www.ebay.com/itm/Waterproof-...e/282459344903
I don't like cases on my Kindle when reading. Maybe when reader+cover drop down to, say, 150g combined weight, then I'll start using covers. I'd like one with similar grippy back texture as the Paperwhite's. Hmm, maybe with a bit more drag.