Word of warning...if you get a popup that open a half-size window, be sure to close it before closing any of the full-size windows. If a half-size popup window is closed last, you may have to do the whole re-sizing thing again.
Also, if you forget (as I have more times than I want to admit) and press the Maximize button on a secondary window and that window ends up being closed last, you may have to do the whole re-sizing thing again.
That annoying little "feature" of Internet Explorer's wanting to open secondary windows half size is one of the reasons I switched to Firefox.
