I would add that I think the other big thing in the U.K. context that's really important is housing costs. We have two income measures that are fairly standard, both before and after housing costs. They show quite different things. They have very different geographical impacts.
Maybe we aren't going to get a budget standard basis for benefits, but that doesn't mean one shouldn't look at particular areas of costs. I certainly think that in the U.K. housing as an area of expenditure is probably the highest single item now. It's also worth saying that I think it was always housing costs that made it very difficult all the way through history for the budget standard things, right the way back to the work of Sir William Beveridge in the forties. So it's big, and it's definitely important to very many citizens.