Such a simple tool - but I don't leave home without it! I didn't actually think this tool was that important to me - but then I didn't take it to the Happy Hour studio night - and discovered how lost I was without it!
Absolutely fantastic for using the short ends of expensive $100/pound glasses. For using the short ends rather than having to rummage through the glass in the middle of a bead. (Rule of thumb - rummaging gets you burned. Rule of burned thumb, actually)
Sure - I can stick a short end onto another rod of glass as a handle with the best of them, but this is faster, and often, serves my purpose better. It's more about the convenience than the economy of using every last little scrap.
Love this tool - consider this one a must have.