Daily minimums for physical activity

I've set for myself the following minimum daily activity:

Steps:  11,000 per day on weekdays (15,000 per day on weekends)
Active time:  30 minutes on weekdays (70 minutes on weekends)
Stairs climbed:  15 on weekdays (variable on weekends)

I'm still working on figuring out workouts for my upper body and midsection, but walking takes quite a bit of time already.