my favorite tool or thing would probably have to be my super sucker side draft forge hood. I do forge outside, but ever since my dad and I made it, forging has been MUCH more enjoyable. I do have some other tools I enjoy (100# Trenton, 5 1/2 post vice, my 3# cross peen that I've used ever since the firs day I forged, and so on) but the side draft forge hood is really helpful. I got the plans of anvilfire.com. the one in the pic is not mine but very similar, ya'll get the idea.