Interest rates down to 0,5% and still nothing moves. The only people who benefit from this are those who are already have a variable rate mortgage (and allot of those do not go below 2%). The rest can't even get a mortgage.
Kick start the economy using credit? Get out there and use your credit cards. Have you seen the interest they still charge?
Conclusion. If the government really wishes to kick start a spending spree, why not introduce a "Bank of England" (U.K. only) credit card, one that charges, lets say 2% above the bank rate, after all, throwing loads of dosh at the banks isn't working, so they may as well throw it at us, after all we do have a vote.