Being able to take a few minutes out of the workday here and there to attend to minor home duties (laundry, pets, deliveries, etc.) is a pretty significant extra perk on top of the time savings of avoiding the commute.
Yes and you do these things during the day and not during the time when everyone else is home from work. I go shopping at various times, but when I go to the stores during the "return from work" rush hour right after common work end times, it's way more busy, queues are longer, etc. WFH is the best.