I bought my first ipad. I haven't used it yet until I find out what to do. It's an ipad 4 and I also bought an otterbox for it. I see that it also has a screen protector. Do I need to put a separate screen protector on the ipad4 and then put an otterbox on top of that? I did that for my iphone4. My phone company put a screen protector on the iphone and then put an otterbox on top of that. Your help is greatly appreciated. Thank you in advance for your help.