Anti-static dryer sheets

As I was thinking of how static builds up in a dryer, I thought of ways to stop the static.  One method is dryer sheets.  The material in these sheets are positively charged.  The positive charge balances out the charges between the clothes when they are rubbing and tumbling in the dryer.  Fabric softeners also work.  They are usually positively charged and create a lubricating layer on the clothes which acts as an anti-static agent.