I don't know whether Donald Trump will be reelected or if Joe Biden will be our next president, but I do know that there will be much rejoicing and much weeping no matter who wins. It's just that the rejoicers and the weepers will change places.
You need to prepare for the day after and plan for a win on either side. Here are some ideas to get you going.
Your office has Trump and Biden supporters
While I can't guarantee this is the case in small offices, you likely have both. You may think that everyone agrees with you--but that's because people are often unwilling to voice their opinion if they think it will cause problems. If the boss is vocally pro-one candidate, wise employees on the other side keep their mouths shut. This means everyone will not share your planned celebration or mourning in the office. Don't punish or berate an employee who is happy when you're sad or vice versa.
Keep political gear out of the office ...
Tell people in advance to save their parties for home. There will be raw feelings on the other side, and you don't want to start a problem.
... But let people talk about the election
If you try to shut everyone down, you'll fail. There is no way this isn't a topic of discussion--especially if the win isn't by a wide margin. We may have to wait for absentee ballots to get a final answer. There may be a lawsuit. There's absolutely no way to keep people from talking--tell them they have to keep it civil.
Set a good example
You may strongly prefer one candidate over the other. You may feel that if a certain candidate wins, your business will be destroyed. You may feel that if a certain candidate wins, your business will take off. Elections have consequences, and you may be right, but if you start weeping and wailing or jumping up and down with glee, your employees will take that as a signal.
If your preferred candidate wins and you think it will be helpful for your business, you can absolutely say, "I'm so glad that [candidate] won because his presence in the White House means A, B, and C for our business." It's also OK to say, "I'm not happy that [candidate] won because his presence in the White House means D, E, and F for our business. Let's figure out how we can best move forward in this environment." Regardless, it doesn't mean life will be easy or that your business will be destroyed.
Pay attention to local sentiment and plan ahead
Is it possible that there will be riots in your area if the wrong candidate wins? Prepare yourself for that. Make sure you take all safety precautions before closing up on election night. You may wish to hire security.
Have your EAP number handy
Four years ago, when Trump won, and people started freaking out, I assumed things would quickly get back to normal. I wrote:
Look, the adrenaline is pumping today. It was an upset. But tomorrow everything will be back to a blissful non-election normal. You'll go to work, drink your coffee, get a call from school that your little darling just vomited over a classmate. All those normal things. Before the election cycle began, you didn't think all that much about who the president was, and you'll go back to that.
Boy, was I wrong. This time around, I suspect it will be amplified. There will be people in your office who will be really upset. Please encourage them to call the employee assistance program (EAP) or take a mental health day or two. It's better to give people time to cope before coming back to the office.
Regardless, the advice my Inc. colleague Jessica Stillman had four years ago still stands: Get some chocolate. You're going to need it.