LoveFilm for all my entertainments needs, I subscribe to 3 DVDs unlimited, only £13 per month
Library - registered in one at the place of work and home, total of 12 libraries network
Took up walking having seen Julia Bradbury's do Wainwrights - to keep fit. I use Saturday Walkers Club (http://www.walkingclub.org.uk/
) where you can download free walks, some don't need maps at all as description is so good, but most maps can also be found in the library.
Following from the above - joined YHA, annual membership cost £15. Some YHAs I stayed in, especially in the Lakes and South West were amazing. They say it's easier to get into Ritz than into Black Sail YHA and if you stayed in the latter, you will appreciate why. YHA also does some good promotions out of season. Last Christmas and NY, they had a speacial deal £10 a night, so booked 7 days self catering in Devon (Beer, Salcombe)and Penzance for New Year. I've had fantastic time. I also started volunteering with them - you get to stay for free, all meals provided, some travel expenses possible, and you get to do something worthwhile.
MegaBus/Train company - really cheap, £9.50 return rail ticket to Exeter from London as oppose to £44 one way with First Great Western - I loved it. National Coaches could be cheap too on certain routes if booked in advance.
Bringing food to work, cooking, baking, buying cheap ingredients - some sell by dates are a bit of a red herring. I buy everything reduced especially if it gets cooked the same day.
What I still need to master is wine / alcohol home making, so if anyone knows how - please do tell!