A survey by a price comparison website has found that one in five households believed their finances were at a 'tipping point' and rising fuel bills were the most important factor in squeezing their wallets. Moneysupermarket.com says that weekly outgoings for the average British adult have gone up by £54 over the past six months. It found fuel bill rises negated all the work being done by households to insulate their homes to increase energy efficiency.