Lathe drilling from the toolpost.

[mattthemuppet]

nice! I made a couple of these - just 3/8-24 threaded 3/8in arbors - and I use them alot, for much the same reason. Plus my lathe has only 1 1/2in tailstock travel, which is a pain.

Something else that I've gotten a surprising amount of use from is a toolpost mounted live chuck (spun my a cordless drill). Really handy for cross drilling shafts or locating holes in a plate if you don't have a dividing head.