Some do it for the sake of continuing a tradition.
Others believe their last-ditch efforts boost the chances of victory for the political candidates they support.
Whatever the reasoning, friends, party members and candidates themselves kept a constant vigil at polling locations on Election Day, passing out literature that laid out the ideals and action plans of contenders like Republican Sam Rohrer.
Standing in front of the Robeson Township building on Route 724, George and Sue Rosser of Elverson distributed pamphlets advocating for Rohrer's reelection.
"We're friends of Sam," George Rosser said.
The rules the Rossers needed to follow, according to Berks County Director of Elections Deborah Olivieri, included staying at least 10 feet away from the front door of the polling location.
They were not allowed to "interfere" with voters, Olivieri said. "It is basically common courtesy."
Can these people really make a difference for their candidates?
Working the 9 a.m. to 1 p.m. shift in front of the building, George Rosser said, "Just from my own experience, your mind is made up before you get to the polls."
During their first half-hour on the high-traffic voting day, he and his wife passed out about 40 pamphlets.
While he doesn't know whether he swayed voters in Rohrer's favor, George Rosser saw one impact he did have.
"You incur some wrath," he said. One voter told him to "get a job."
As the Rossers stood in the parking lot, Gerry McDevitt of Muhlenberg and Richard Ramsey of Robeson stood to the left of the township building door.
At 9 a.m., as the church bells at St. John's United Church of Christ were ringing, McDevitt said, "Some people are pissed off at us."
McDevitt said he started when the polls opened. "Then I left and went and voted in Muhlenberg. Every vote counts as they say."
Standing opposite McDevitt was Tom Stallman, the half brother of Roher's opponent Russ Hummel.
"At 7 a.m. I was here, passing out this stuff," he said, tapping a stack of flyers on which Rohrer's name was circled and slashed in red.
Stallman said his shift would end at 10 a.m.. He planned to return at 4 p.m. and continue to 7.
It is difficult to change a person's mind this close to voting, Stallman said. "Unless they catch something on here," he added, pointing to the pamphlet.
He guessed that 5 percent of voters haven't decided when they arrive at the polls.
"But they should have their minds made up. You hope they do, by god."
As a man approached him, Stallman said, "Care for some more literature?"
"Might as well," the man smiled.
At St. Mark's Lutheran Church-the location of Precinct 2 in Birdsboro-Cher Morse, wearing a Daniel Boone High School jacket, flashed a "Jim Gerlach for Congress" pin.
She proclaimed the same loudly as each voter approached the door and offered a flyer.
"Not for him," one woman said as Morse began her short spiel. "I lost a nephew in Iraq."
"I've been working for the GOP for a while," Morse said. That's how she got her battery-powered pin.
Also in Birdsboro, Jaap Vanliere of Pike Township was standing up for David Kessler.
On the 7 to 11:30 a.m. shift, Vanliere said he would go home and vote and return at 1 p.m.
"I'm helping Dave out down here," he said. "It's an opportunity to be cheery."
Morse echoed his statement.
"Gerlach Congress," she said again, offering another brochure.
At the Geigertown Fire Company-the location of Robeson Township Precinct 1-Judy Bennitt of Exeter handed out pamphlets supporting Lois Murphy and Russ Hummel.
"Vote for change," Bennitt said to each voter.
"I voted for change," a man said after casting his ballot. "I voted against Rendell."
Handing out Sam Rohrer literature was Bill Montgomery of Morgantown.
"He's a special man," he said. "I'd say 98 percent have made up their minds. But you might get someone who is new to the area."
In Amity Township, at St. Paul's United Church of Christ, Gail and Matt Kessler handed out literature supporting David Kessler.
"It's tradition," Gail Kessler said, adding that she may have swayed a few of the undecided.
At 7 p.m. a the Exeter Township building, Republican candidate Billy Reed stood out front, shaking hands.
"Help me eliminate property taxes," the 130th House District candidate said.
David Kinn, showing support for Democrats Kessler and Murphy, said, "You never know, some might read the literature and vote for your candidate."
"I think it's the personal touch," Kinn said. "It makes a difference."