Ten relatives, one house, and somebody has to decide

Quick answer: Pick one organizer. Lock the dates, the place and the price per household before anything else. Make every activity after that optional, with one shared meal as the anchor. Collect deposits in writing before you book.

Your uncle wants to fish. Your sister has a two-year-old who naps at 1:00 and means it. Grandma can't do stairs. One brother-in-law has announced that he won't pay more than $100 a night for anything, and he announced it in all caps.

That's ten people and at least six trips. The usual fix is a group text and a poll, and it's the wrong one.

Somebody has to be the decider

A reunion run by committee turns into a trip nobody picked. Every poll ends in a compromise, and a compromise is the option each person likes least.

Don't ask ten people what they want. Ask one person to organize, and make it the one who actually will. That's usually whoever already keeps the family birthdays straight. Everyone else agrees in advance to be led. Say so out loud, kindly: "I'll make the calls, you'll get a say on the big three, and I'll keep it simple."

Serving the family and being a pushover aren't the same thing. The organizer's job is to take the headache so nobody else has to. It isn't to take every complaint personally, or to rebuild the plan because someone had a thought at 9:40 on a Tuesday night.

Lock three things, in this order

Dates first. Don't ask for preferences. Ask for blackout dates. Preferences produce twelve opinions. Blackouts produce a calendar. Start with the people who can't flex: grandparents, anyone flying in, anyone whose job has a hard schedule. Build around them. The 22-year-old with the flexible summer will survive.

Place second. Choose for the least mobile person in the family, not the most adventurous. Before you book anything, check three things:

• Is there a bedroom and a bathroom on the ground floor?
• Is there one kitchen table, or at least one table, big enough for everybody to sit at once?
• How many bathrooms are there, against how many adults?

That last one ends more family peace than any argument over the thermostat.

A single big rental house puts everyone around the same table, and that's the point of a reunion. The trade-off is that nobody gets a door to close. If budgets or sleep schedules differ a lot, try a hybrid. Rent one house for the gatherings and let the families who want their own space book a hotel or a cabin nearby.

Money third. Money is where families get quiet and then get cold. Decide the system before anyone sees a number.

Split by household, in writing

Per-head splits start fights. The couple with no kids pays for the family of five's extra beds, and somebody does math at the dinner table.

Split by household, with one rule everyone knows up front. Say the house runs $3,600 for the week and four households are staying. That's $900 each. A household that can't swing it brings food and cooks instead. Put that offer out quietly and early, before anyone has to ask for it.

Three rules that save the organizer later:

1. Collect before you book. Don't front the whole bill on your own card on the promise that everyone will Venmo you. Family are the people most likely to mean it and least likely to do it.
2. State the cancellation policy in the first message. If the deposit is nonrefundable, say so on day one. A "life happens" exception is a kindness. Offer it. But the default is that the house is booked and the money is in.
3. Keep a one-page shared sheet. Who's paid, who's cooking which night, who's bringing what. It spares you forty texts.

One anchor a day, everything else optional

Don't schedule hour by hour. People on vacation need slack, and a reunion needs room for the cousins to wander off on their own.

What works is one fixed event a day, and the rest is open. Saturday is the big dinner. Monday is the lake. Wednesday is a morning where nobody is expected anywhere before ten. Someone will always want a hike, and someone will always want a hammock. Both are allowed.

Meals are the center of gravity. Assign dinners by household, one night each, and give the cook a free pass on the cleanup. You'll eat better than any restaurant could manage for twelve, and nobody sits through a ninety-minute wait for a table that seats eleven.

Run the daily plan around the youngest and oldest. If the toddler naps at 1:00, the afternoon starts at 3:00. Nobody gets to treat that as a negotiation. A reunion is partly about the people who won't be around forever, and partly about the kids who will remember it.

Getting everyone there

Arrivals will be a mess. Some people drive six hours, some fly, and the aunt with the minivan will leave at 4:00 a.m. just to feel useful.

Don't try to synchronize it. Set a "doors open" window, say Friday from 2:00 to 8:00, and let people land when they land. The first dinner is a loose pizza night, not a formal event.

If a few of you are sharing cars from the airport, read how four friends share a car for a week without falling out. It applies to cousins too. If part of the family has kids on a long drive, three hundred miles a day, and other rules for driving with kids will save the first day. And if the young ones are flying in, send the relatives flying with small kids without the day falling apart before they leave, so nobody is stranded and tense at a gate.

Leave the house better than you found it

The old rule applies here. Bring something when you arrive: groceries, ice, a case of drinks, a dish for the first night. Don't show up empty-handed to a house someone else organized.

On the last day, divide the work in the open. Strip your own beds. Run the dishwasher. Take out the trash and recycling, wipe the counters, and check under the beds for socks and chargers. Stay for the last of it. Stack the chairs. Leave a short note for the owner and, if the place treated you well, a small thank-you.

Take photos of the house when you arrive, so nobody argues later about the dent in the wall. And leave it cleaner than the way the cleaning crew would have.

Take the picture on day one

Everyone assumes the group photo happens on the last day. By then somebody has a sunburn, the baby is melting down, and your cousin already left for his flight.

Take it the first afternoon. Everyone's rested and in clean clothes, and nobody has been hurt by anybody's opinion yet. Use a tripod or hand the phone to a neighbor.

In twenty years, that's the picture on the shelf.