Joining the EU? Didn't Heath do that in 1970?
The worst thing this government did was to not follow up its promising words in 1997 on electoral reform. It was returned in 1997 and 2001 with two enormous landslide majorities, and did not want to replace the system which delivered two results skewed so heavily. Even William Hague in 2001 was dumbstruck that they had not introduced PR.
The next worst thing it did (or didn't do) was failing to axe the council tax in favour of a fair system based on ability to pay, rather than on property value.
It should also have seized on the chance to scrap the ineffective CSA which punishes fathers by squarely blaming them for relationship failure (even if they are the one who got dumped) and punishes their children, from that relationship or others, by impoverishing him. The old system of letting a judge set a fair, reasonable and affordable level of maintenance was far better.
Don't forget Labour's successes. Cameron said in a PPB this year that the minimum wage was one of Labour's better achievements he would keep (though he made no mention of ever increasing it). We no longer have leaky, crumbling schools, but nice brand new ones. We no longer have to wait 2 years for out patients appointments, or see patients being left in corridors doubling up as wards. And at least for the first 10 years of Labour, unemployment was significantly lower than it was over the whole of the previous 18 years. Even now after the worst recession in living memory, it is not as bad as it was under Thatcher/Major.
How many more are going to say Labour "joined the EU"? This was done by Heath's Tory government in the 70s, cemented by Thatcher signing the Single European Act, and Major signing the Maastricht Treaty in 1992 (remember the ERM fiasco?) all WITHOUT A REFERENDUM. In fact only one party has EVER given the UK public a referendum on membership. Which party was that? Let me give you a clue - it was not the Tories.