You can also create a recovery USB stick, although using it will install the factory image rather than a fresh OS. There's also the issue of using up a 16GB USB stick...
Windows 8 Tip: Create Recovery Media | Windows 8 content from Paul Thurrott's SuperSite for Windows
Of course if you're trying to remove bloatware with a reinstall, this method will not work. I'm not sure about Samsung, but the ASUS and Dell XPS Windows 8 images come with a very minimal amount of bloatware, not enough to merit reinstalling to remove it anyway.