I am looking to open a 0% credit card to make a large purchase, but I can't figure out how feasible this is. I haven't used credit cards much before and when I do I tend to pay them off in full each month so I have no idea what my credit limit would be, and when I spoke to the card provider they said the only way to tell me (or even give me a ballpark figure) would be to make the application - but if I do that the clock starts ticking on my 0% rate sooner than I want it to. My income is about £50k per annum and my dh's is about the same. Is it realistic to think we might be able to borrow £20k between us on credit cards or am I way off the mark? Is there any way to get an idea what the limit would be before making an application?