Most races give out a plastic goodie bag on race weekend. In many cases, these bags contain samples and paper brochures for other events. B.Y.O.B and bring your own bag to your next race expo. You can pick up what you need and save another needless bag. A lot of races are going bag-free. The next time you run or walk a bag-free race send the race director a note supporting their efforts. It will support their environmentally friendly efforts and support the trend.