I usually buy a case, the norm is to find maybe 2 or so per box, but sometimes I'll see if they have any "customer rolled" coins.. the teller will pull out the tray, if you see some old looking rollers (these looked like they were from the 60's) then you know that they were prob in a drawer somewhere and somebody died so their relatives just took them to a bank and deposited into their account. Just something I do at the end of the day to wind down, then make a quick stop to swap out in the morning on my way to work or school. I've only been collecting for a month now and I've already found about 16 ounces of silver, at 30+ dollars an ounce, That's not too bad. The real gold mine is if you can find some customer rolled halves, because a silver half is worth about 12 bucks, I had a friend find 3 rolls of ben franklin halves at a bank in Oregon (60 coins at 12 bucks a piece). Silver is projected by some smart people to go up past 100 dollars an ounce in the next 5 years. Hopefully I'll be at 1,000 ounces by then!