Wrap Text around image

I haven't been able to find a solution to this by searching the forums.
Is there a way to add a button in the composition screen of a post (when creating the post) to add an image that is left justified with the text wrapping around it? It's aggravating when you want an image int he text, but it moves all the text down and looks goofy. I know other forums and blog hosts offer this in an insert image feature, where you can click for the image to be right or left or center, but the text will wrap around it.

Also--if i've missed the way to do that, it's because i couldn't find it and didn't have time to search 100 pages. Any help would be greatly appreciated.
thanks,
Jae