For those who work from home, do you have days where you start later/finish earlier/have one day of not working? What do you do to make up for having no breaks?

I will have kids here from 7am until 6pm. Of course, dd goes to school but outside actual school hours she will be with me. The kids don't sleep at the same times either, of course. That's Monday to Friday, then weekends I do a respite weekend once a month with up to 4 kids here and dd naturally will always be here.

Do you have any trade secrets to share on getting any quiet time?