Dress-ups, streamers, balloons and top-notch bargains will see the city come alive with wide-eyed shoppers on Saturday.

Cityprom chief executive Vanessa Cahoon said business registrations for this year had increased by 150 per cent.

``We're really excited,'' Ms Cahoon said.

``More than 80 businesses will be part of the day, and that includes a lot of the smaller independent stores.''

She said larger store outlets, such as Launceston newcomer Sportscraft, and some restaurants had also expressed interest.

``Not only can people come in and get a fantastic bargain and shop, but they can also enjoy something nice to eat as well,'' Ms Cahoon said.

``There'll be lots of activities on the day, free children's entertainment, men's and women's fashions, and a contortionist _ Ruby Rubberlegs _ down from the mainland.''

It's the first time HAAB Designer Jewellers owner Tim Haab has been involved in the sale, and he's planning ``something very, very special'' for  visitors.

Mr Haab said some items, such as their Pretty Pink Argyle diamond collection, would be selling at or below cost-price.

For more information about Crazy Day go to www.cityprom.com.au.

FACT FILE

WHAT: Launceston Central City's Crazy Day.

WHERE: Launceston CBD.

WHEN: 10am to 3pm Saturday.