I used the homemade remedy with peroxide, baking soda, and Dawn liquid dishwashing soap (from the internet). The tomato juice wasn’t recommended online, but a friend said she used it and it worked well enough. There wasn’t any tomato juice in the house.
I washed the dog about four times and it still smelled. The owner had two products delivered to the house (neither were very effective) and I spent two nights shampooing the dog in the bathtub. I was exhausted 
afterward. The house still reeked of the skunk odor so I opened all the windows and turned on the fans.
The dog was foaming at the mouth and drooling heavily initially when he entered the house the first night. I think the saliva spilled onto the couch cushions and bedding (no hint of the skunk 
OIL). So, I washed the bedsheets, duvet cover, and towels and the odor disappeared. Thank goodness!
The cushions were placed outside to air out for a few days. By the time the owner returned, she said she couldn’t smell anything except for the hair on his muzzle. Well, that’s because I spent nearly a week getting rid of that stench.
Sadly, she showed no appreciation for all the extra work that I did when I had planned to do some computer work during my stay. She did compensate me for the trouble by paying the equivalent of one bath for a dog. None of groomers I contacted would touch the dog 
when I told them about the skunk spray.