scale calibration

I don't see a thread to discuss scales and mixing by weight. I have seen mixing by weight come up in a few threads but I think a dedicated thread should be created. I for one am over the moon with a mixing scale. No more syringes and droppers and pipettes. No more mess or spills. Something to...

Good Day Fellow DIY-ers, I have a request, I know it is cheap of me - but hey i'm a struggling DIY-er. I need to calibrate a scale I bought from the states a while back - the thing is just sitting on my desk, it serves as a counter weight holding down papers - I sometimes balance stuff on it...