i had bad timing with loosing my job at start of recession due to illness and had to go from a decent wage to fuck all, so learnt hard and fast how to cut back.

Theres loads you can do. Cut back all your phone, net utilities etc. Or at least make sure your on the cheapest tariffs you can find.

Plan your meals so less of the "shit dont know what to have tonight, oh i'll get a curry".
also certain foods you can cut back on to the value ranges and it wont effect flavour.
go to supermarket at closing time to get the cheap bargains especially stuff you can freeze!
Shop round for home/pet insurances.
eat before going to cinema/night on beer as less reason for popcorn and kebabs etc.
Dont buy rounds
if your single then cook for 4 and freeze 3 portions then you have home made ready meals!
Make yourown subways for 1/3rd cost that taste better and are healthier.
Walk for journeys under a mile.
Only heat the rooms your in.
Only light the room your in
wear a jumper rather than turn the heating up.
Get a thicker duvet.
Dont put heating on in morning, just man up and get up quicker! The cold will wake you up!
Pay off expensive credit first (before you buy that new turbo ).
Drive smoothly, your fuel bill will reduce.
Go out to cinema, bowling etc earlier in week as its cheaper often.
If you have takeaways again many places do deals for early in week.
If you must use taxis, use private hire, usually cheaper per mile. If it means standing in cold for 10 mins then use PPPPPP or man up!