The Bounce Dryer Bar is very handy since you don't have to find the box of Bounce dryer sheets and put one in the dryer; the bar is already in there.  Also, it leaves your clothes smelling nice.  It even lets you know when it is getting ready to run out, so you can buy another.  It sticks well; I have used it several times and it has never fallen out.  It makes my clothes soft.  It will last from 2-4 months depending on how much laundry you do and what dryer setting you use.  It is a little expensive and I don't like to use something with fragrance with all of the clothes I wash since I have...