Brown has proposed replacing the £23,083 second homes allowance with a fixed overnight allowance for MPs whose main homes are outside inner London. But how much?
A Travel Lodge in central London at short notice is about £100 a night. Add £20 for dinner and £10 for breakfast and a cab fare and I'd guess £140 a night would be a fair allowance. The House sat for 165 days in the 2007 / 2008 session, so this would come out at £23,100 a year.
But of course it should only be payable for each day an MP attended; those only attending 100 sittings a year would get £14,000 and those only attending 60 sittings a year would get £8,400.
This actually seems fair to me. Where's the snag?