I've been looking around for a good nontoxic stone cleaner to use in stone shower stalls. Most that are out there are not nontoxic. Simple Green makes a stone cleaner with biodegradable ingredients and zero VOCs (volatile organic compounds--these give off gases as they work). And it works moderately well. The only draw back is that it has an irritating smell. This is the best that I've found.
Here are some good tips for what to do as soon as you get home after a stressful day at work. These include such things as not going immediately to make dinner but take a few minutes to relax--get in nature, even on your balcony or deck if you have one while drinking some relaxing green tea. Other good ideas here too. http://www.care2.com/greenliving/how-to-deal-with-post-work-stress-8-easy-ways.html
Ever thought of solarizing your home? Electricity costs have gone up in recent years and are predicted to continue to rise. Installing photovoltaic solar cells can save energy use in your home and save you $$. http://www.greenhomeimprovement.com/today/home-solar-systems-worth-the-cost