Insurance, try this one.
I know this threads been running for a while but heres one I don't think has been mentioned Barry Grainger, I been insured with this broker for the last three years, every time renewal comes up, I ring round all the usual suspects Adrian Flux, Greenlight, Tesco etc, when I've found the lowest quote, I pass it on to Barry Grainger and they always beat it, although they don't give you this good quote until you've told them where and how much your lowest is.
Their quotes for bog standard run arounds are no better than the big insurers.
Insurance is somewhat of a numbers game a quote from one company one month can be totally different a few months later, depends how much liability they have for a particular period of time.