You know you packed the coins very well when...

Was at the post office last night sending the coins for one of the recently confirmed swaps. First of all, I spent quite a bit of time packing them and squeezing the total weight to under 100 grams. When I handed the package over to the postal worker at the counter she looked at it, tried bending it slightly and said "Well, feels like there is nothing but paper in there." There were 11 coins in the package with a total weight of 70 grams according to the swap page.