Hi Crusty, I saw a very old table saw blade sharpener at a local used-tools place a few months back and am kind of kicking myself that I didn't pick it up. I've seen a few good DIY methods of sharpening saw blades though (Matthias Wander of woodgears), and end mills (Kevin of MachineNZ). As for TIG tungstens, I just freehand them on the bench grinder and they are very quick and easy to do. I try to do them in batches, so if I dip a tungsten (as I still do from time to time), I just pick up a fresh one, and then I don't have to visit the grinder and interrupt my flow too much.

Cheers,
Craig