Guido Fawkes has been undercover investigating "the semi-official LibDem policy of exploiting the expenses system for political rather than personal gain", which he believes "is looking likely to become a campaign issue."
As Guido says
"This is in some ways a more insidious form of sleaze."
Guido doesn't mention Ed Davey in his article but mentions other Lib Dem MPs.
"There is circumstantial evidence that Hampshire’s LibDem MPs; Sandra Gidley,
Mike Hancock, Christopher Huhne and the retiring Mark Oaten have manipulated the Communications Allowance to save their party spending some £17,000 on envelope stuffing machines, which they claim are not used for political communications. "
Guido does have a go at Ed Davey in his latest YouTube video: