Is there a reasonably accurate, field-expedient way to weigh a newborn at home?
I don't need the kind of plus-or-minus a few grams accuracy they get at the hospital because I only plan to check every week or so, but it does have to be sensitive to a few tens of grams.
Some things that don't work in my house
I could weigh myself on the bathroom scale with and without the child in my arms, but that only give a accuracy around 100 grams.
The kitchen scale has the necessary precision, but once I've put something on it to hold the child the total exceeds 5 kg (the limit on the scale we have). Worse, too much squirming by the baby might tip the container off the scale.