1) Shop at Farm Foods, Netto or Aldi (if you can/have any near you) None of those exist in Bath; the nearest I have of any of those (or similar) is Lidl on the outskirts of Bristol.
2) Buy things like meat and fish from the going out of date section of your supermarket. Break down the product into daily portions and freeze on the day of purchase I try to whenever possible, but rarely succeed. I usually go frozen anyway.
3) Keep your bread in the fridge. This will extend its life for toast and things for up to 10 days (worst comes to the worst just cut the mould off) Never mind the fridge; I put it in the freezer and take it out as I need it!
4) Dont eat prepack meals. Cook wholesome stodgy filling meals. Batch them up and freeze them I tend to do neither of those. I usually just take a couple of things that go together (e.g. chips and sausages; spaghetti and mince) and cook it. Sometimes I freeze any excess.
5) Dont go home as often/ever ( hard but necessary) I never go home when I don't need to, with the one exception of Christmas, and even then I use my bus pass to do so sometimes (13 hours...).
6) Turn EVERYTHING off. Leave nothing on standby. Even turn the microwave off to save money on running the clock. Become a Nazi on energy efficiency I would but it's all-inclusive because I live on-site so it makes no difference.
7) Dont use a tumble drier - they cost a fortune I have no option on occasion. It's £1 a throw here, so not too bad but it can pile up. I have no otehr option, except for a miniscule towel rail.
8) Cut down everything extra you dont need. Sky/fancy phones/Cable/Gyms/broadband package, whatever it is dump it or change it downwards (if the contract allows) None of that except what is already included. I don't even have a phone contract (I can't justify one either).
9) Close all the doors in your house. It will keep your rooms warmer longer. Sounds silly but I bet your rented house doesnt have great insulation. Again, all-inclusive.
10) DONT use those little Tescos or Sainsburys. They rip you off in the name of "convenience" I only use those for milk and very occasional spontaneous purchases if I'm going out, e.g. croissants.
11) Walk or cycle everywhere you can Difficult in the middle of nowhere. But I don't pay for bus travel.
12) "Borrow" as much stuff as you can from uni. Charge your phone, I pod, e book etc there and not at home. Again, living on-site negates the value of this.
13) Sell anything you dont need on Ebay I have only one thing worth selling - and that's my laptop. Everything else is worth pretty much nothing, oir if it is it so so old and/or worn I would get little if anything for it.
14) Darn your socks! (My feet rot socks and shoes!) It gets worse - apparently my mother is going to take me t-shirt shopping over Easter!
15) Dont pay for anything you dont need dont get food delivered, walk to the shop and get it yourself! Too far to walk (almost 2 miles to any shop that sells enough to justify the distance. Again, I use my bus pass instead.
16) Use markets for fruit and veg. Even meat and cleaning products you can save a fair bit doing that. I try to but am always never able to access them when they're open! I would only ever really buy mushrooms anyway.
17) Take your own lunch to uni. Cut out the pre packed butties and the takeaways Again, living on-site negates this idea.
18) If you have a credit card get rid of it if you can. It is too much of a temptation to use it for things you shouldnt I had to get one as an emergency in the first year. I haven't used it for 18 months (I don't even know where it is; it's in my room somewhere).
19) If you can shop around for your energy supplier. No use (again).
20) See if you can get a water meter fitted. And again.
21) List out what you need for your food shopping. Stick to it and dont buy that nice looking pie or cake! Silly but it really helps focus on your spending I do looks teak pies, but I stick to lists very well - to the point I don't tend to use one because I know it all.
22) If you have insurance think if you really need it or if you do whether you can move to a cheaper option. Ask those meerkat people! The only insurance I have is either (a) through the University or (b) through my mother's olicy which covers students when in University accommodation (or something along those lines anyway).
23) If you have a car get rid of it if you can. I have no car now and seem better off not having to fork out for petrol! I don't even have a provisional - another thing I can't afford!
24) Learn to say no to things and stick to your decision. I learned that years ago.
25) Look on the net for money off vouchers for your day out. MBus passes make this nigh-on useless. When it isn't my mother tends to give me Love2Shop anyway.
26) If you smoke try and give up! Don't even go there. I get annoyed enough when people ask for a lighter. I won't even buy them for other people, never mind myself.
27) Dont do the lottery or gamble (if you do) you wont win often enough to make it worthwhile (Although I used to live on my nudgie winnings!) The only time I ever do a bet is for the Grand National. Amazingly, I've won 4 out of 5 (the 5th horse died - literally...).
I guess you have done all of this but it does help sometimes to see it written down.