Baking Soda for Deodorant

So I haven't worn deodorant for over a year. Yeah, yeah, don't get grossed out! I use baking soda. That's right, once or twice a day, and especially when I get out of the shower I dampen the ends of a finger on each hand and dip them into a bowl of baking soda, then I cross my arms and rub the soda into my armpits. It works fast and seems to last at least 8 hours even on real sweaty people. If you're like me you'll never go back to that gooey, sticky, soapy bar of artificial fragrance. And by the way, baking soda costs about 50 cents a pound.