Having dog hair on everything really bothers me, and I have a dog! She is mostly black, so the hair doesn't show much on jeans and dark clothes, but you can see it in wisps floating along the floor at times! I know it would be less if I brushed her every day, but I just can't seem to remember.
My son and his family have a white dog and a light colored cat. The kids are always covered in dog/cat hair, and it really gets to me, particularly when I pick them up to go somewhere. Of course, they rarely vacuum, and all their clothes are dark colored. Ack!