Some slow cookers come with a timing capability and even have refrigeration. So, you can put your ingredients in in the morning before you leave for work and set the time that you'd like it to turn on and start cooking. They're more expensive than your average slow cooker, but it might be an option worth exploring. Another option (if it's available to you) is to stop home over your lunch hour and turn it on. Many of our slow cooker recipes have "high" heat options that cook in 4-6 hours. Good luck!