To help guide those who haven't been following a lot of the more local campaigns but are interested in following them on election night, I've created this viewer's guide for Tuesday. Sorted by poll-closing times (all times Eastern), it's a state-by-state rundown of what's on the ballot in 2013.
Florida: Municipal elections, including Miami mayor, St. Petersburg mayor, and local ballot measures in Hialeah and Key West.
Georgia: Primary special elections in SD-14, HD-104, and HD-127; municipal elections, including mayor of Atlanta.
South Carolina: Municipal elections in Mt. Pleasant, Spartanburg, and Myrtle Beach.
Virginia: A well-publicized governor's election, but also close lieutenant governor and attorney general races; the entire House of Delegates is also up for grabs.
North Carolina: Municipal elections, including a bitter partisan race for Charlotte mayor.
Ohio: Municipal elections, including mayoral races in Cleveland, Cincinnati, and Dayton as well as a school-financing measure in Columbus.
Alabama: The Republican primary runoff in the AL-01 special election.
Connecticut: Municipal elections, including mayor of New Haven.
Maine: Five bond issues; municipal elections in Lewiston.
Maryland: Municipal elections in Annapolis, Bowie, Frederick, Gaithersburg, Rockville, Salisbury, and more.
Massachusetts: Municipal elections, including a close Boston mayoral race; a special election in the Second Hampden and Hampshire Senate District.
Michigan: Municipal elections, including Detroit mayor, an open position of questionable power right now; a special election in HD-49.
Mississippi: Special primary elections in HD-05, HD-55, and HD-110.
Missouri: Scattered local ballot measures.
New Hampshire: Municipal elections, including the race for mayor of Manchester, the state's largest city; a special election in Hillsborough County House District 35.
New Jersey: The night's second-highest-profile gubernatorial election; all 40 State Senate seats; all 80 General Assembly seats; a referendum (Question 1) to dedicate assessments on wages to employee benefits; a referendum (Question 2) on raising the minimum wage to $8.25 per hour; some municipal elections.
Pennsylvania: Municipal elections, including an open-seat mayoral race in Pittsburgh.
Rhode Island: Municipal elections in Woonsocket and Central Falls.
Tennessee: Municipal elections in Humboldt, Knoxville, and Selmer.
Arizona: Municipal elections, including mayorals in Prescott and Yuma.
Colorado: Amendment 66, which would raise taxes $950 million to fund education; Proposition AA, which would institute a 25% tax on recreational marijuana; a nonbinding referendum in 11 counties to secede from Colorado; various municipal elections, including fracking bans in Boulder, Broomfield, Fort Collins, and Lafayette.
Minnesota: Municipal elections, including an open Minneapolis mayor's race that has drawn 35 candidates.
New Mexico: Municipal elections, including in Las Cruces.
New York: Six ballot measures, including Proposal 1 (to authorize new casinos) and Proposal 6 (to increase the judicial retirement age); municipal elections, including New York City mayor; county elections, including closely watched races for county executive in Nassau and Westchester; special legislative elections in AD-02, AD-53, and AD-86.
Texas: Nine ballot questions, including Proposition 6, on water projects; various municipal elections, including the preliminary round of the Houston mayoral and a local referendum on the fate of the Astrodome; a special primary election in HD-50.
Wyoming: Local ballot initiatives in Hot Springs, Laramie, and Sheridan Counties.
Idaho: Municipal elections, including Nampa mayor.
Iowa: Municipal elections, including a local ballot measure in Coralville that has drawn big outside spending.
Montana: Municipal elections, including Billings mayor.
Utah: Municipal elections, including West Valley City mayor and a Jordan School District bond measure.
California: Municipal elections, including the San Bernardino mayor's race and a gun-control ballot measure in Sunnyvale.
Oregon: Local ballot measures, including a Multnomah County bond issue.
Washington: I-517, which would make it easier to qualify ballot measures; I-522, which would mandate the labeling of genetically modified foods; five nonbinding "advisory questions"; municipal elections, including an historic race for Seattle mayor and a minimum-wage ballot measure in SeaTac; special legislative elections in SD-07, SD-08, and SD-26; county elections, including the Whatcom County Council, a priority for national environmental groups.
Did I miss anything? Let me know in the comments or on Twitter!