Well that's a cheerful message to read today!
Have you tried talking to your superviser about whether a paper (or more) could be produced out of the thesis? (OK, working on that would delay submission but it would help if you're looking for post-doc positions)
Skillwise - think of things from a different viewpoint, eg: you can claim project management experience from having managed whatever research you carried out.
Have you tried creeping round your research council to try and squeeze some more money out of them. A friend of mine (from the year below me at school) had over-run and managed to get a bit more out of them and she is officially doctored tomorrow.
In our house we have a maths phd person (who is getting more than the rest of us) and his budgeting is appalling - mind you so is his mental arithmetic. One simple measure he could take that would save a lot of money would be to abandon the take away dinner!
Smile, be happy, go perform at a Christmass concert and then go and get drunk!
