Take a look at Moneysavingexpert.com for good comparisons between energy companies.
Put the word out at work / with friends that you are looking for furniture…there is always someone looking to offload some furniture cheap / free. Or charity shops, here we have a Dorothy House shop that is purely furniture.
Do you need to pay rates or does the landlord pay that? Ditto water / sewerage?
People mentioning buying second hand furniture but be careful if buying second hand soft furnishings they can have bed bugs or other infestations and they are a nightmare to get rid of you normally have to get rid of everything and spray several times, I know as a friend of mine bought some chairs that had bed bugs living in them and she ended up with them in all of her own soft furniture.