So just how much interest have I earned?

So - how much interest should I have earned since the interest was last added to the various accounts.

Well, the Abbey national one was opened on the 9th June so that's 3 days interest (it's is actually only two, if I think about it - but it's easier to count this way) which is 3p after 1p tax has been deducted. The National Savings Bank should have 162 days interest - or £2.91 after tax (with the greedy bastard taxman getting 73p). My ISA has no tax deducted and so at 12th June should have given me £56.87.