You've got to write down.
Yesterday I've "destemmed" a lot of black currants. We treat them like pure gold, as the jam made from them, is our all time favourite.
For the umpteenth time I filled the bowl first, as I'm using it always when processing the pickings from the garden in front of the television. I wish I had a front porch to do that, but I don't, so the living room it is for now.
So...I want to weigh the result of my efforts to decide how to process them further.
I think I have weighed this bowl at least 58 times in the years I've had it, but I'm never able to recall it's weight when I need it.
let's hope the marker actually IS waterproof ;-)