I mix a spoonful of baking soda in a cupful of water, then pour it into a small (travel size) hairspray bottle and just spritz it on after a shower. Works great! I live in a tropical climate and NEVER thought I would be able to give up antiperspirant. I smell sweet and clean when I remember to use the baking soda! I also like not having the sticky icky antiperspirant residue on my skin and clothes.