Unless you have a generous relative who is prepared to give you an interest free loan, I can't come up with any imaginative ideas. I suspect most people have to work too hard for their money these days, with rising taxes and cost of living, to forfeit what little interest they get on their savings. Depends too on how long you want to borrow it for. Have you tried Googlng "0% credit card deals" to see if there's anything on offer there?