tip#4 10/5/12---- When car camping always include a box of baking soda with your supplies, when backpacking I bring about a third of a box in a small tupperware container. It can be used for the as an antacid,to brush your teeth, relieve skin itch from insect bites or poison ivy and pain from sunburn, remove fish smell from your hands,relieve heartburn,use with water to make a mouth freshening gargle,sprinkle a little in your shoes to keep them fresh smelling, mix it with water and use it to wash down any surface. All this and more from one product, and it isn't expensive.