It turns out our savings rate was just over 50%, not counting pretax retirement contributions (that sounds like too much math for me)! That's pretty awesome.
More importantly, despite a few unexpected expenses in food and one somewhat infrequent bill coming in, we came in just about exactly $300 under my regular (in months, like this one, with two paychecks) day-job income. That means we saved my husband's entire paycheck and my small side hustle paycheck! And also that we could survive on my income alone, at least with our current expenses.
I think our biggest takeaway is that we can plan our meals for the week while at the grocery store and save money that way. Also, possibly, that we don't feel deprived when not spending any of our personal "fun money."