You can find your polling location and other voting info at this link. The photo below shows the Norristown locations. Remember, if you live in Norristown 2-3 and voted at St. Pat's last time, you'll be voting at Gotwals School this time.
Your sample ballot can be found at this website. Find your town on the list, then click on your district. Info about the candidates can be found at Vote411.org.
Most election officials live in your local neighborhood and know regular voters by sight. They're your neighbors and they're there to help you vote. Be nice to them. First time voters or voters who've changed districts since the primary will be asked for photo ID (it will be printed under your name in the book whether you need to present ID, so don't feel the official is picking on you). Otherwise ID is NOT required and you won't be asked for it, but some people feel more comfortable presenting it. That's fine, too.
If your name isn't in the book, the officials will ask questions to assure you're in the correct polling place (usually that's the problem). If it's not that simple, the Judge of Elections will call the courthouse to see if you're registered in the county and take other steps to solve the problem. No one can simply walk in and vote anywhere. You can help by making sure you know which polling place you should go to. Use the link above to double check if you've never voted before or if you've recently moved.
You may not use your cell phone or other electronic devices inside the polling place. No selfies in the booth, no texting, no talking on phones, especially no taking photos of anyone else. NOTHING. Polling places preserve the privacy of every voter and need to assure that no one is intimidated by having their photo taken. Talking on phones distracts voters and officials. Please respect this rule ~ you're only inside (hopefully) a few minutes.
Remember this ~ depending on your gender, race or economic status, it's a good bet that at some point, people like you didn't have the right to vote in the US. That right was won for you. Make tomorrow a celebration of that right. Celebrate it with your neighbors at the polls, regardless of who's voting for who. Let's have a great turnout.