In order to maximize the viewable area of your browser, rearranging or minimizing your toolbars is a just a simple trick:
In Internet Explorer you can drag & drop toolbars, using the toolbar handle, to any location in the toolbar area. You will notice that some of your toolbars contain a large unused area. Use those unused areas to combine several toolbars within a single vertical toolbar space.
In Netscape Navigator you can click the toolbar handle to minimize the vertical space used by the toolbars. In case you need access to this toolbar again, a single click on the toolbar handle will restore it to full size again.