Familiarise yourself with Martin Lewis' Moneysavingexpert.com website.
Join Quidco, absolutely essential! We received cashback from everything bought for Christmas last year, £70 cashback for home& car insurance plus other purchases. £230 cashback in total from September to January.
The insurance was the cheapest for us.
You basically shop about, find the cheapest quote then go to quidco site, see if the company you want to go with is listed and click on the link, buy the insurance and the cashback/%discount is given back usually within 2-3 months depending on the company.
Write down your statement of affairs and keep a spending diary always. You write down every penny spent and I mean every peny. At the end of the month you look back and see wher you are spending where you don't need to.
For us this was a huge shock, we would spend £100 on the main shop but then go back and spend another 30-40 PER WEEK in stuff we have forgotten
The main shop is done by Dh because I would indulge, he sticks rigidly to a list.
Our weekly budget is £150 inc of food, petrol. Petrol costs are £45 per week for us and are unfortunately essential because we don't live anywhere near our workplaces.
Our food bill has reduced by £40 per week just by careful meal planning, no prepacked stuff and we eat organically/seasonally.
Meal planning is essential! We buy one organic chicken and it makes 3 meals for 5 people in our house
Look at the cost of running your car if you have one. Walk when you can. Car share to work if possible.
Cancel all unnecessary things like gym's, subscriptions etc.
Start with the list of things you absolutely have to pay like Mortgage, utilities, CTax. See if you get these cheaper, utilities esp.
Then add the things in that you are tied to like credit cards, car payments that kind of thing. See if you can switch to 0% deals, sell car for a cheaper one etc.
Then add in things that are luxuries like nights out, cigarettes, takeaways etc. If there is room, ration these.
Food shopping may well be your biggest spend depending on how big your family is and there are loads of ways to reduce this.
hth
Maybe we can help with specifics