Home Page as tabs :
Instead of just one web page as your homepage, you can make your home page several pages. Select your favorite web sites and open them in a set of tabbed windows. Go to Tools -> Options and select 'General'. Under 'Home Page', press the 'Use Current Pages' button. Now when you hit the Home button on the Navigation toolbar, your favorite web sites will load with just one click.
Bookmarking a set of tabs :
You can bookmark a set of tabs when selecting 'Bookmark This Page' or Ctrl+D Check the 'Bookmark all tabs in a folder' checkbox to store all the tabs in the current window into a Bookmark Folder.
More shortcuts :
While it's easy to select tabs with a mouse, you can also cycle through tabs using the keyboard: use Ctrl+PgUp (or Ctrl+Tab) and Ctrl+PgDn (or Shift+Ctrl+Tab). You can also select the first tab by pressing Ctrl+1, and so on up to the 9th tab with Ctrl+9. If you have a middle mouse button, click it on a tab to close the tab.