The way I planned boot camp and the workouts are that you would train Monday, Wednesday, Friday, or Tuesdays and Thursdays.
Three times a week is definitely enough to stay fit, and to lose weight if your eating and your sleep/recovery are on target. With the twice a week option, I'd suggest one more strength based workout on your own.
For both groups I like to encourage one weekend workout. For this workout I like one of a longer duration, possibly closer to 1.5 hours or more. This is a workout of your choice...be it a big hike, or a long bike ride. I also encourage you to grab your family and have them do it with you.
I told you that I wanted to pass along discounts if I could, so here is the first one. You can receive 10% off your own custom nutrition bar from YouBars.com. I typically get 5% off, but here is a special code for 10% off, "C66KR53".
You can create your own bar, or you can choose from one of the "popular bars". I tend to create my own paleo version, but I do like the "Alpha Bar" (if you scroll down almost to the bottom of the popular bars page.)
That's if for today, enjoy your weekend.