You can now pause your Buttondown subscription at any time. This gives you the flexibility to take a break from sending emails without worrying about being billed for it, whether it's because you're just using Buttondown for a seasonal newsletter or you're taking a hiatus from writing to go backpacking through Europe (or maybe for both reasons at the same time!)
To pause your subscription, visit the billing page and click "Actions" at the top-right corner of the page, then select "Pause your subscription...". Or, of course, check out the docs.