Iain Dale has highlighted how the Labour MP for Enfield North, Joan Ryan, rightly told rail company First Capital where to go when they tried to bill her for postage, after she encouraged constituents to use the private firm's freepost address to make complaints.
All very well, but it's only right that Ms Ryan's personal record of using public money for postage bills should also be recalled at this juncture.
According to Ms Ryan's entry about her on the indispensable theyworkforyou.com, for the last three years running she has spent more on House of Commons stationery and pre-paid envelopes than almost any other MP.
In 2003-04 she was the third highest spending MP out of 658 on postage and stationery - going through over £34,000.
And in the two subsequent years she has been tenth in the national league table, spending over £28,000 in 2004-05 and nearly £25,000 in 2006-07.
I daresay her Conservative opponent, Nick de Bois, will bring a new meaning to the phrase "first class MP" after the next election.