The girls don't get walks...they get runs! I hook them up to my bike one at a time of course, and they get a 2 mile bike ride (yep had to whisper that or Roxey would be going crazy right now) and Bon's the one who gets walked.
I don't do it every day, but normally about 3-4x's/wk.

We actually did it this morning in the dark around 6 am