The Salvation Army has appealed for people to stop dumping unusable items at their stores these holidays, saying it costs millions of dollars to dispose of junk.
The Salvos are also urging people not to deposit good quality clothing, toys, furniture and other items at stores outside opening hours as they could be stolen or damaged by rain.
NSW Stores Chaplain Major Robert Sneller on Wednesday urged donors to give items they would still use themselves.
He said the January holiday period was a time when Salvos stores staff and volunteers were under more pressure than usual because of the volume of donated items that needed processing.
"We ask our donors to be mindful of this fact when making their donations."
Dealing with unusable items cost the Salvation Army around $5 million a year, money it says could be better spent on helping people in need.