More to explore:
Join a New Yarn Two Ways - How to Crochet - Blogs - Crochet Me
How to join T-shirt yarn
yarn flowers ♥
Video for how to make an adjustable knot for bracelets.
Joining new yarn: weaver's knot
DIY: magic braided bracelet
a new (easy) way to make pompoms.
How-to on the 'Russian Join'...attaching two yarns without a knot.
Tricks for joining two pieces of yarn
Yarn is the best fiber.