Sand Bags - Often overlooked security measure is laying down sandbags. Making them into modern day american residential or combat lol fighting positions bunkers. Best bag to go with would be a Synthetic/ Polypropylene bags, and with linear low -density polyethyene (LLDPE) bags. Note - Sand or gravel would be best to use as they have more density superior bullet stops, and to note again stay away from soil- More vegetable matter in the soil, lowers its ballastic protection. Have ideas or anything to add, post up guys.