Sometimes it’s okay to be green on the job. Research shows that greener offices yield happier employees. A 2008 study in the journal HortScience, published by The American Society for Horticultural Science, found that people who have an office view of nature, or a workspace with live plants, report greater job and life satisfaction than workers without plants or windows. Spruce up your workstation with a few plants or bouquets. Or, head to a nearby park for a short break. Spending 20 minutes in nature can help boost your mood and energy levels. If none of those are options, decorating your space with photographs of nature can help you recover from stress.