I love my Joule and have already gotten tons of use out of it. I just bought a second, larger container so I could cook more at the same time (like the 8lbs of corned beef I have brining right now).
But where do I store my Joule when I'm not using it? I started with the box but knew that wouldn't last. So I looked around and I found this case from Caseling intended for a UE Megaboom speaker:
https://www.amazon.com/gp/product/B019BK82N6

Because it's for a Bluetooth speaker, it has a divider to separate the speaker from the charger. I had planned to remove it but it helps keep the Joule from moving around, so I left it in. Make sure to orient the Joule so the divider doesn't get in the way of the power cord.
I wish the handle was next to the zipper, so you couldn't pick it accidentally when it's not completely zipped up. But that's not a big deal in this case.
All in all, I'm very happy with this case and it will be great when I travel (what, you're going to leave your Joule at home when you travel?).