I really love adding labels to everything I make; they add such a professional finish to my projects! I recently put together a tutorial for Spoonflower that walks you through how to make your own personalized fabric labels, which can feature either your logo or a favorite phrase. Pop on over to the Spoonflower blog for step-by-step instructions and more photos.
And in case you don't feel like designing your own, I also designed a simple "Handmade with Love" label (pictured above), which you can print out and use for your own projects. Happy labeling!