Most see browsers as some tools, which should not be modified too much. Safari though gives a nice amount of freedom to make some modifications. Firefox users will know scream that some browsers give more of these possibilities, but I’d rather not pay any attention to them.<--more read about the cool feature-->
Safari(4 at least) has the ability to make folders of certain bookmarks. You can create a new folder by going to manage bookmarks, if you want to customise the experience even more. Then you can actually open all the bookmarks by pressing command and clicking the folder.
Sounds incredibly easy and that it is. I use this feature for example to load all the comics I’ve bookmarked(bookmarked the dynamic main page as most guessed by now). This is just one of those cool features that let Safari defeat competition like Google Chrome. I still use Chrome as my main browser, but Safari has some nice features that keep it around. Something as light as Chrome just can’t have all the neat features that browsers like Safari have. If you favor some browser over others, leave a comment below explaining which browser and why.