Guessing 7 days a week is the "tough" part. I do 5 days a week and a day of training ride or not depending on how I feel. 75% of commuting time is in endurance/recovery depending on how my leg is at the time. I will put in some tempo/threshold if I know I am winding down for rest or know I have more in my leg than planned (or was in plan). I do make sure I get at least 1 day of a week off of bike.