Nokia Lumia :: Make An Option For Emoticon Key On Keyboard?

I purchase the lumia 900 and overall I'm very happy with it. My suggestion is to make an option in the settings under keyboard for 'show emoticon key'. Most people don't use/need 50 smiley face options, and I'm perfectly fine with typing : and ) every once in awhile when necessary.I'm left handed, and use my left thumb to hit the space bar when texting/emailing. About 50% of the time i accidentally hit the emoticon key and start typing all sorts of smiley faces, then have to hit the backspace key. I lose about 5-10 seconds every text message.