Labor Day started in the late 1800s.

It was a day to honor workers.

The first celebration in the U.S. was in New York City.

It happened on Sept. 5, 1882.

About 10,000 workers walked in a parade.

President Grover Cleveland signed a law in 1894.

This law made the first Monday of September a holiday.

Most big stores and food stores will be open on Labor Day.

Many will have sales.

Costco will be closed.

Government offices, post offices, courts, and schools are closed.

U.S. stock markets and banks are closed.

FedEx and UPS will not do normal pickup and delivery.

Some important services will still run.

Millions of Americans plan to travel.

This is the last big weekend of summer.

AAA says flights to popular U.S. places cost almost 20% more than last year.

Hotel prices are higher too.

The average gas price in the U.S. is just under $4.10 a gallon.

That is up 90 cents from a year ago.

Cruises from U.S. ports are about 4% cheaper.

AAA tells travelers to check the weather.

It also says to look at tires, battery, and fluid levels before driving.

It suggests packing an emergency kit.

The kit should have water, snacks, a flashlight, and jumper cables.