It varies a little with my work schedule. I often have a day or two off during the week, and on those days will try to do two workouts--swim and bike, or swim and run. Then, it either turns out to be four additional days, or occasionally five, when I want to have three runs in a week. I am happiest with at least two days off a week.
"My predominant feeling is one of gratitude. I have loved and been loved;I have been given much and I have given something in return...Above all, I have been a sentient being, a thinking animal, on this beautiful planet, and that in itself has been an enormous privilege and an adventure." O. Sacks