Scales that measure to the .001g can be pretty pricey, but you can get a very good one that will measure to the .05g for a moderate amount. Seeing as how doses tend to be multiples of 5mg, you should be quite accurate with a .05g scale. I paid $50 for mine, it's very small, discreet and portable, and the lid acts as a tray. It also has a built in digital level, and can work in many different modes,(oz, pennyweights, grams). Fair price for how good it is, but you can find one's that will get the job done for much cheaper.