LONG queues before opening time are the norm. As is the huge buzz of excitement that comes with grabbing a bargain.
It's the National Childbirth Trust's nearly new sale in Huddersfield.
And it grows in size and reputation every year.
In the past decade, it's expanded dramatically.
Organiser Sheila Turner estimates takings are ten times that of 1994.
The concept is simple. Parents sell their nearly-new baby clothes, equipment and toys.
And 25% of the proceeds go to charity - this time to Kirklees refugees And Friends Together, who help asylum seeker families locally.
The sale is on Saturday October 2 between 10am and 11.30am at the Sikh Leisure Centre behind Huddersfield Fire Station.
Maternity clothes, baby clothes, baby and toddler equipment, toys, books and videos and children's clothes aged up to eight years are set to be piled high.
Sheila says: "It's a great event. Money is often tight for parents of babies and young children.
"And there are some brilliant buys. We're also urging pregnant women to come along and stock up on things they'll need after the birth.
"The sale is only an hour and a half long because that's all people need. Many have a clear idea of what they're looking for - like a high chair, or a particular toy - and go for it!
"They're in and out pretty quickly."
The NCT holds similar events all over. There's still time to be a seller at the event. Send an SAE to 12 Moor Close, Beaumont Park, HD4 7BP by next Friday.
Admission to the sale is by donation. It's organised like a supermarket, with goods split into types and ages they are suitable for.
This year's spring fair hit a new high with a record number of sellers, buyers, helpers and profits.
Takings were up 15%.
People came from as far afield as Manchester and Barnsley and at one point the check-out queue stretched twice around the room, the area of four badminton courts.