Yeah. All the times people say “sleep when the baby sleeps” or “You must be exhausted”? It’s because we’ve been there.
I will give one piece of advice. Alarms.
Need to make a call or check on someone? Alarm.
Dropping the baby off somewhere before work? Add an alarm (repeat if need be) to make sure the kids not in the car.
Cooking dinner? Add an alarm to check that the stove is off.
Super exhausted brain is rough and while it’s always a small chance it’s scary how quickly we can do something stupid or dangerous without realizing it.
Personally I’ve thrown clothes in the trash and put trash in the laundry hamper (learned not to carry both at the same time) and locked myself out of the house for an hour (trusted neighbor got a copy of our house key after that one)
Bonus tip: poison control is cool. Don’t be afraid to call when/if something happens. Kid got into teething tablets and ate them all? Not the first time they’ve heard of it and if there’s anything to be done they’ll tell you. They even checked back a little later just to be sure.
Bonus tip 2: if you have somebody willing to help with laundry, house, etc take it. It feels weird but a lot of the people offering know exactly what you’re going through.