My two kids are reasonably well-behaved when they're alone. But for some reason when they are together, they "inspire" each other to be naughty and to never, ever listen. It is draining my internal battery at a prodigious rate!!

It's become a bigger issue recently because the kids are spending sooo much time together (previously they mostly had weekends together, when both of us parents were around to police it). I'm not sure how to manage it though, as my wife and I are both spending more time solo-ing with the kids and this is harder to police when it's two-on-one. Plus, before we would make sure to have a lot of 1:1 time but that's a lot harder when you're solo'ing.

Any suggestions for getting two siblings to both listen while you're solo'ing?