Always worth asking tellers if they have anything odd.Many will want to get rid of it.
Getting myself into the habit asking for new bills,$2 bills,and odd turn-ins.
Was at a coin show with my daughter and she was looking at currency.I have my family trained to look at serials now.
A $1 bill with a serial of 67777777 had a asking price of $90,he dropped that to $50 for my daughter.No way was I paying that for a $1 bill.
Makes sense to learn about it if your visiting banks often.When I have questions one of these sites usually answers it.
http://www.uspapermoney.info/serials/http://www.mycurrencycollection.com/reference/stars/http://www.coolserialnumbers.com/default.aspxGood Luck