I don't wear deodorant. I used to wear in highschool but found out I don't really need it. If you take a shower everyday in the summer chances are you don't need the stuff. My sweat just does not get that smelly within 24 hours. If I go more than 48 hours no shower I might be tempted to put some on for the day but....
I use this stuff when I am on tour and wont have a shower for longer than a few days. Just like the author write, you can take a shower with it and then swirl it under your pits (or other places that might smell) and leave it there. When you start to sweat your pits will just smell like the soap!
http://www.rivbike.com/products/show...ar-soap/25-001