If you are overwhelmed with plastic grocery bags and are horrified that they could end up as part of a plastic island in the middle of the ocean, vow to recycle them instead by returning them to a nearby drop-off location. Find the nearest retail drop-off location at www.plasticfilmrecycling.org or bring your clean household bags and wrap to the Columbia Heights Recycling Center at 3801 Madison St. NE, open Saturdays from 9 am to 1 pm. Every six months, when…