Published: Feb 14, 2013 1:01 PM EST

FORT MYERS, Fla. - At Fort Myers Floral Designs, the work is non-stop all of Valentine's Day.

"We've done heavy prep work for the past 2 days leading up to this morning," said Mary Devlin, an employee at the shop. "We've been here since 5 o'clock this morning."

Even though employees' official end time is 6 p.m., they know Valentine's Day usually means pulling longer hours. That's because, unlike other holidays, the orders can only be filled on one day.

"We have ten trucks on the road... we're very busy," Devlin said. "We're trying to get to all those businesses before they close, so this is our crunch time."

In just one day, the shop expects to fill hundreds of orders, and hopefully, fulfill customers' expectations on a bouquet that will impress their sweetie.

"If you forget things like that, you end up losing the people in your life who depend on stuff like that," said Charles Cosby, a customer. "These are the type of holidays guys need to remember. I'm teaching (my son) at an early age, you need to remember these things."

And those who don't remember, usually make up the shop's clientele the next day, when those "in the doghouse" are sometimes willing to spend more to make things right.