I set a timer that goes off every 45 minutes. At which point I'll walk around for a couple of minutes and do some push ups and pull ups. In the mornings I walk

I set a timer that goes off every 45 minutes. At which point I'll walk around for a couple of minutes and do some push ups and pull ups. In the mornings I walk my daughter to school: 25 minutes exercise. At lunch time I'll take a 30 minute walk. There's no reason to be unfit as a software developer.