Easy ways to save money....
When out and about always take a drink with you and snacks from home. I'll take a bottle of tap water or squash. Also apples, bananas or packed lunches. Means I'm not tempted to buy a coffee or a sandwich etc
Do a stock take of your cupboards and freezer. Use up what you already have with meal planning.
Cut down on meat. Use veggie substitutes such as qourn or soya mince. Vastly cheaper.
Look in the world foods aisle for spices, lentils etc all cheaper the "normal" aisle. Also check out the "foreign" bit of the freezer section. The frozen garlic cubes are ridiculously cheap. I got a bag of garlic cubes for 75p I believe. Buy cheap pasta the 19p 500g value bags. Makes very little difference taste wise. Saves a lot.
Check out places like Home Bargains for food, can be much cheaper.
Savers is cheaper for toiletries.
Don't buy anything between now and Christmas, apart from essential items ( food, bills etc) you probably already have more clothes than you wear. So don't buy anything new.
Don't heat the whole house. Heat the room you're in. Doesn't matter if bedrooms are chilly, just get your fluffy pyjamas and socks out.
Cook economically. Eg if you have sausages, veg and potatoes with gravy ; firstly just have boiled potatoes, not mash. (Uses less potatoes, and no butter/eggs/milk) Steam veg over the boiling potatoes, use the potato water to make up the gravy. Saves using an extra ring, and a boil of the kettle.
Turn off lights, switch things off at the wall. Draw the curtains in the afternoon before it gets chilly. Share bath water.
Little changes all add up!