Strength Training on the Go.
When I am at work, I take strength training breaks twice a day.
In the bathroom, I do 2 reps of wall push-ups, 2 reps of wall rocking (chair rocking without the chair), wall squats, standing adduction and standing abduction, just to name a few. If anything can be done standing. Take 5-10 minutes of you down time or break time to add a little strength training.