In communal workspace, the energy of the group tends to keep us focused on our tasks. That might be a conventional office in a trophy building in Manhattan or a leased area in a basement for free agents. When we Baby Boomers primarily operate from our home office, it's easy, during slow periods, to get sidetracked by domesticity.
If I had been busy I would not have been distracted by the three loads of laundry that should get done. Instead I would have shrugged at the possibility of running out of clean clothes and figured there had to be something way back in the closet that would make-do. No, it's not efficient to siphon off some of our business hours for whatever isn't associated with revenue.
When there are not new assignments coming in, my attention should be riveted on marketing and sales. Late evenings and weekends provide plenty of time for domestic responsibilities. Those shouldn't be factored into a work day in our home office.