I have been thinking of adding "junk" silver coins to B. O. B. supplies. But I am having a hard time figuring out how many of each denomination (dimes, quaters, half dollars and dollars) would be a good balance between "enough" and "too many". My first thought on the matter was 100 dimes, 50 quarters, 30 half dollars and 20 dollars. Anyone have any thoughts on the matter?