Hi J&A, I'm trying to think of ways I make money - even small amounts! Have you signed up with cashback sites such as \link{http://www.freefivers.co.uk/register.php?n=2398\freefivers} - there are loads of sites out there where you can make money through changing your car insurance, buying through them or just clicking on sites! Sometimes it can amount to quite a lot!
If you click on jobs on \link{http://www.dqmgroup.com/\this} site you can apply to become a seed, where you get sent mail and get paid for receiving it (25p per letter) You just put the date on the letter and send a bundle back to them - they then use this information to track mail etc.. It took a while for mine to start coming through but I now get up to 4 letters a day! They also do mystery shopping to if you fancy that.
Check the \link{http://forums.moneysavingexpert.com/forumdisplay.html?f=37\freebies} board on MSE and apply for anything that might come in handy - samples of shampoo, chocolate, cat food, washing powder .... I have had loads of stuff - it's nice to get things through the post too! 
You can earn money by answering surveys online or becoming part of a testing panel. I test for johnson & johnson, you get to keep the product and also get £2 Boots voucher for each trial. The best survey site is pineconeresearch but they very rarely advertise for people, I luckily managed to see an advert - they send £4 in meal vouchers for every survey completed. The best place to find these opportunities is Moneysavingexpert.
As you like online banking, when you get back on track have a go at logging on each evening and transfering the odds (ie. £238.45 - transfer the 45p) to your savings account and hopefully it won't make much difference to your current account but it will start to grow in your savings account!
I know none of these will make you rich but they can help! If I think of anything else I'll post - sorry if I've repeated anything already posted, it's such a long thread I couldn't read it all! 
ps - I don't buy organic veg but isn't it cheaper to grow your own in the garden or even have an allotment if you want organic?