Goal: Healthier, Less Expensive, More Earth-Friendly Lifestyle

My first year of working was spent saving to move out of my parents house, cutting down extras to afford maxing out my 401k, figuring out my health insurance and HSA account, and paying for furniture like a bed, mattress, couch, and desk, and making a dent in my student loan.  Now that I have most of the basics figured out, I'm trying to save for an emergency fund (although some argue this should have been done before contributing to my 401k), continue paying off my student loan, and get a normal budget going since my expenses are more stable now.  My goal is to live a healthier, less expensive, more earth-friendly lifestyle.