An easy first step is to stop buying bottled water. It just comes from a tap anyway and last time I checked, it was around a 1600% markup. I use a metal, insula

An easy first step is to stop buying bottled water. It just comes from a tap anyway and last time I checked, it was around a 1600% markup. I use a metal, insulated tumbler with a lid and my ice lasts 12 hours. When I require the portability of bottled water, I just reuse plastic gatorade bottles; they are pretty durable. It's a really easy change.