The couple evicted last month from the house they had rented for 15 years are sharing a child's bedroom with the three-year-old daughter of a relative.
Martin and Violet Coyne were put out of their home in Luttrell Park Drive, Carpenterstown, on August 27 and still have no permanent home.
Mrs Coyne (61) was still in her nightclothes as she was comforted by neighbours and supporters, while her husband (73) said he barely had time to pull a shirt and trousers on and had to borrow a jumper from a neighbour as he stood outside in the cold.
The case centres on a repossession order instigated by ACC Bank because the owner of the house went into receivership in 2012 and the bank wants to sell it to reduce its debt.
"Martin and myself are sharing a child's bedroom in a relative's house. Her little single bed is beside ours and our son Derek, who is in his 30s, is sleeping on a couch downstairs," Mrs Coyne told the Herald.
Supporters of the couple were due to hold a protest today at RaboBank headquarters in Charlemont Place.
Members of the Housing Action Group and Anti-Austerity Alliance say RaboBank took over ACC bank, and added that "it purports to help the homeless by donating to the Simon charity while at the same time it makes people homeless by repossessing properties".
Mrs Coyne said they are glad of the assistance offered by their relatives, but are tired of "living out of black plastic bags and need to find a place to live".
The couple said landlords are not willing to accept people who have to offer rent allowance to pay for accommodation, and they are caught in a housing trap as a result.
"We're trying to get hold of an auctioneer who might be able to have a word with a landlord somewhere to see if they would help us out. We have to find somewhere soon," said Mrs Coyne.
"We feel displaced and we feel let down. This is no way for anyone to live."
Mrs Coyne accused the Government of "burying their heads in the sand" over the housing problem in the capital.
"We didn't win our battle, but we highlighted the problem, and still nothing is being done. It's not like they don't know there is a problem," she told the Herald.
She added that the experience has "destroyed" them.
"It has done something to us deeply. I really don't think we'll ever get over this. We are stressed out and losing weight," she said.
Mrs Coyne said all their belongings are still in the house they were evicted from, but until they find a new home they cannot remove them.
"We want to be left with some of our dignity. At our age we're not able for all this," she said.
"It's like as soon as we get over one hurdle we are met with another one. There is no end to it.
"We want to be able to get our routine back because it has vanished. We want to be able to do our own washing again and the simple things that people take for granted."