Removing embroidery stitches is a tedious task that's not much fun but unfortunately there will come a time when it is unavoidabe. Knowing a few tricks and techniques will make stitch as painless as possible.
Always work from the back of the machine embroidery. Take out the bobbin embroidery threads first and the needle threads will be easy to remove. Use a seam ripper or small scissors with sharp points to cut the bobbin stitches. After clipping the stitches on the back of the the design, turn it over and temove the thread from the front.
Adhesive de-lint rollers and tweezer's offer efficient ways to remove loose threads. Lightly roll the de-linter over the surface of the design and loose threads will adhere to it, use the tweezers to pull out any stray threads and/or fibers.
Instead of a seam ripper or scissors, a handy cool for clipping bobbin threads is Peggy's Stitch Eraser. This is a type of electric shaver that looks like a moustache or beard trimmer; however, the Stitch Eraser is made a bit differently and they are not interchangeable. This cool is only successful if the correct stabilizer has been used. Do not try this with adhesive-backed paper stabilizer as it will gum up the blade and not only ruin the garment but make the Stitch Eraser work less efficiently.