one thing i do to save money is instead of heating the oven to roast one piece pf chicken i buy enough chicken bits for four meals, put enough for each meal in a seperate dish, add sliced mushrooms under one and sliced garlic over it, to the next i add chinese flavouring, the next gets mixed herbs and the fourth i roast plain, i then cook all four at the same time, then either freeze them or refrigerate them and microwave to reheat as needed,

another tip is instead of buying expensive cooked sliced chicken breast, buy a couple or fresh raw ones, cut into 1inch thick slices, place into a pan of boiling water, stir to seperate the slices, bring back to the boil, boil for a couple of minutes till white right through, lift out using a slotted spoon, cool in a covered bowl, this can then be used in salads, sandwiches, a quick curry or whatever. the water it was boiled in makes a great stock, clear soup, or starter for gravy.

try to buy one larger than normal size thing like washing powder each week. the larger size ones cost less than the smaller size things in the long run as you don't have to buy them as often!

i often buy the reduced price items (things near or on their sell by date) e.g. meat or bread and freeze them for later use, just be careful to use the same day you lift them out to defrost and cook well! i found going shopping in the evening is when the shops tend to reduce things they want rid of..Sundays an hour before closing time is the best time to shop for cheapies here

buy things that can be used in many ways e.g. 1 coliflower can become coliflower cheese, curried coliflower soup and cooked in florettes to accompny a meal, that way you don't get bored of the same thing and are less likely to waste any.

if you cook too much of something, even if it is not enough for a whole extra portion, freeze it, you can always use it as part of a meal with other frozen leftovers.