Okay, here is one website that has 4 articles to read. And yes, they are probably like the ones you have already read. But just in case it has some extra information that the others did not, well hope it helps.
FLEAS
It is from NC Agriculture extension serivice. It won't advertise specific brand names but it does mention IGR's, (insect growth regulator). This is what I used to spray on the carpet. I can't remember the name of it, but I have never had to use it again. It came in a tiny bottle and I mixed it with water and put it into a big gallon bottle with a spray nozzle and hose. (When I get rid of this old carpet, I will expect I will have to find a new IGR for hardwood floors!!!)
I would vacume everywhere you can reach, every nook and cranny, all closets included! It doesn't matter if the dog has been in there or not, fleas can travel on you, your kids, and the adults can jump around pretty well!!! Where you have heavy furniture or spaces too tiny or narrow to get a vacume tool into or under, I would spread the Borax and or dog or cat flea collars either cut them up into smaller pieces and push them under the washer dryers/furniture/tiny spaces or leave them whole. I would just leave them there for the amount of time mentioned on the life span of the flea collar or at least 24 hours or more for the Borax.
One of the articles above also mentions that drying out and heat will kill fleas in certain stages. Rediculous to raise your house temp to 103 F.
In my first flea experience before I got married, I brought my cat into my newly rented appartment for an hour, took her back to my parents and went off for a week. I came back to the apartment,(that I had not been to in a week, that my cat had only been in for only an hour) and I was attacked by a hoard of fleas! My parents did not have a problem when my cat was in their home and I never had flea problem at my previous apartment. Could have been fleas from a pet from a previous resident, never figured it out.
My boyfriend and I went and got some flea bombs and let them go for over night. I went back to my parents to stay until the next day. When I went back in, the fleas were dead, but I had to vacume not only the carpet, but the tables and counters and chairs,couches, my bed, dressar were covered with dead fleas where they had tried to jump and get away but were killed by the fog from the bomb. That was before IGA's were invented.
If you cut the hair on your dog, you will be able to see the fleas/flea dirt better, and use a flea comb and catch the fleas faster than if his hair is long. I had Persians, (still have one of them) and never had to shave them. Their hair is not as long as a Yorky's but it is very thick as the coat is made up of several different kinds of hair. Fleas can hide in a Persian's coat, you never see them until they are infested. Use a flea comb, don't let the fleas get away that you catch, have a small container of extreamly soapy water so close that you can dump that flea in there, it will help trap them so they can't jump out while you keep combing and searching.
Oh, before we used the IGA, we also had some good use of a small aluminum pan of water with a light blub over it,(like a utility light, has a long cord and a plastic cage around it,the light will get pretty hot) The idea is the fleas in the area will get hot and jump into the water,not be able to jump back out and drown. It only works in a small area, can't do that all over the house. Those lights get pretty hot, could cause a fire under unsupervised situations. Kids have to be kept away too.
This hot light/water solution will only work in the area that the light is in, it will not draw fleas from other areas of the home. It may not be practical but just suggesting it, in case you do have a situation where it can be safely used under supervision.
Not sure if they will have something with IGA's(available at this time of year?) in them for the home at Lowe's Home Improvement or the other Home improvement store or farm/aggriculture stores that might be in your area. If you do find one, it is not something little kids should be crawling around in, nor pets, until it has had a chance to dry really good and then I would still not let the kids skin be touching the floors or carpets/rug while the chemical is in them.
This is all I can suggest,so I'll be quiet now and let you find your way through this situation.
Wishing you the quickist, cheapest ,and best working solution which ever way you decided to go