I had this problem. How I solved it was signing up for the planet fitness near the office. I was always too tired after the commute to work out at home, but found that if I go straight from work to the gym, I could get an hour workout in, while also skipping some of the heaviest traffic. Even if you show up, put on your gym clothes, and free-spin on an exercise bike for 30 minutes, it’s more than you’re doing now, and will add up.