If you live in St. Louis County, you can get your sample ballot here:
http://www.co.st-louis.mo.us/scripts/elections/index.cfm
In addition to the "big issues" that are advertised all over the place - like president, governor, prop A (casino loss limits and supposed money for education), Prop M (for metrolink) and Prop S (parkway schools) there are several others that I had never heard of. Check it out before you are at the polling station and you're trying to decipher what you're voting on.