Until the day she died, our dog came with us to the office every single day. She was very well trained, had her own spot, slept most of the day, was available for hugs and pats whenever, and many of my clients loved having her there. For the ones that didn't like dogs, (very, very few) I put her in another room or closed the door with her on the other side.
It was marvelous having her with me, and I miss her so. It helps that hubby and I own our business as well.
The problem with dogs is that we have them such a short time. They steal our hearts and then they leave us.