Just picked up this digital scale, a 200 gram capacity .1 gram precision unit. There are many uses for this, but I mostly wanted it to help with the mixing of epoxy. It seems pretty good, calibrated well with 1 dollar bills (1 gram on the mark every time) and coins - a dime is supposed to be 2.27 grams give or take. Like any good scientist, I want to start weighing all kinds of things now. It would be interesting to weigh all of my D motors to check for any variations.