In reply to Edradour:
Much as I also quite generally like moneysaving expert, I think the advice regarding emergency funds is oversimplistic and actually dangerously misleading.
The advice is basically to pay off credit cards with your emergency fund because you can always use the credit card as the emergency fund later, if an emergency arises, and you are better off in the meantime.
This rather presumes that you are
(a) able to pay for the emergency with credit cards. This does not always apply. What if the emergency requires hard cash? Make a cash withdrawal I presume? However there are generally limits set to the amount that can be withdrawn as cash on credit cards. Hence if you need, say, 5k at a rush, in cash, then you may be screwed. Also, paying for an item of size (like, say, a car) on a credit card is likely to attract a fee which may or may not outweigh the interest savings by paying off the card with the cash.
(b) that your provider does not do anything unpleasant with either your card or your credit limit. Whilst admittedly unlikely, I'd rather the control of my emergency fund was in my hands rather than in the hands of a bank.