Besides for purchasing lots i also go to my local Wells Fargo to get coin rolls. i mainly stick with nickles and pennies but sometimes get a few dimes and quarter rolls (and half dollars if they have any in stock). I have found many old Jefferson nickels (no buffaloes yet) including a silver war time nickle. I have also found a few wheat pennies and as i mentioned in a different blog post i keep all of the pre 1982 copper pennies due to the rise in the price of copper. some other interesting coins that i have acquired at banks are Susan B Anthony, 90% silver Kennedy half dollars, and 40% Kennedy half dollars.