In a few months, our fluffy dog will shed her undercoat again. It's called "blowing her undercoat" for a reason. The downy-light hair can float in the air. For the last couple of years, my daughter has helped me comb our dog's hair once a day or so during the month the dog is blowing her coat. This greatly decreases the amount of dog hair I have to vacuum with the added gift of spin-worthy fiber. I wash the fiber and save it. Carol advised me to card it with silk, and provided the silk, so the dog fiber is carded half and half with silk, by weight. I recently spun up the resulting fiber into the two small skeins pictured here. I am planning on crocheting a small button scarf out of the resulting yarn, fashioned after one Christine worn to a guild meeting last winter.
For more information on spinning dog hair/fiber, check out Knitting With Dog Hair by Kendall Crolius and Anne Montgomery.