The 77-year-old mother celebrated the special milestone with her closest colleagues at an event last week. 

"I am pretty happy with it," she said. 

"The time has passed so quickly.

"I like the people there and the people that come in.

"I like talking to them and helping them.

"I guess I just like helping people."

Ms first started volunteering with the organisation in 1984 at the suggestion of her friend.

She has worked at seven different locations and said she had made many life-long friends.

"I knew a few ladies who worked there and started helping out on Saturday mornings," she said. 

"When I finished working full time I did some more days."

Ms Schultz's role involves serving customers, hanging and organising clothes and making sure the store is tidy. 

"I remember when I worked at Railway Place I would close the shop and put the money in a biscuit tin," she said.

"I would take it back to my house and count it, take $50 out for the float money and then take it to the Salvos.

"Now everything is electronic and we have cash registers.

"Times change."

Ms Schultz's daughter Helen Horgan said her mother was a kind person who liked to help others. 

"She has done it so long it has become part of her life," Mrs Horgan said. 

"It is a pretty big deal reaching the 30 years.

"She is really proud of herself."

Ms Schultz said she was not ready to give up her volunteer position and hoped to continue as long as possible.

She currently volunteers at the store in Long Gully. 

"It is what I do, it is who I am," she said. 

"I really enjoy it and it keeps me busy."

 To learn more about volunteering with the Salvo Stores visit www.salvosstores.com.au