Could you be dropped off and picked up from work a little walk away, so maybe your DH could drop you off/pick you up 2 blocks from work and you could walk the rest of the way? Maybe while at work making time for more incidental stuff, like 10 squats when you return from the loo, run on the spot for 3mins every 2hours....something like that! Set a timer everyhour and do something...anything to get moving a bit more?? Not really a propper exercise plan, but it's moving more which is the idea when you're trying to shift those kg's!