Somewhat amazingly, I have just scored an hour in which I have only one child (who needs a diaper) and no chores. There are about a hundred things I could do, but I have narrowed it down to reading a book or doing some embroidery. Both will give me some of the calm I've been looking for and one will accomplish part of my goal to get all the things I have committed to send off in swaps finally gets out. I will then promptly remove myself from swap-bot, I just don't have the space in my life for it at the moment.
If I worked on the swaps, I'd be able to get everything out on Friday and free up some mental space. Sounds like I've made a plan and none too soon - Rigby's dropped her last toy and is no longer content to sit in her own filth.