Day Trading Idea

I'm thinking about doing some day trading. Nothing crazy or out of hand and just one stock in particular. I own a small amount of Conexant(CNXT) and I swear this damn stock fluctuates almost weekly between $3.00 and $3.80. Every time it goes down it sure enough goes right back up and every time it gets back up it goes right back down. Has anyone ever done anything like this? I was going to use my e*Trade account so the commissions are only like $13. I'm not looking to make a ton of money, for the most part I just think it would be fun to gamble at work. Advice?