Buying online always go via topcashback or quidco. With topcashback you can transfer £50 (+ they add 5% )a year to tesco vouchers which then quadruple in value for restaurants and days out.
Watch out on topcashback for the magazine discounts they do them a few times a year and essentially you get paid to trial magazines, so long as you remember to cancel. For example they had £5 cash back for any magazine subscription and lots of 3 issue for £1 trials. I did several as separate transactions ( there was a three transaction limit), added the date to the calendar and set a phone reminder to cancel. Lots of nice mags and paid to read them.
Daily mirror do a £5 off £40 shop at Aldi on the third thursday of the month. Its valid for a week so you can easily buy two and get two shops in and buy long life milk / tins etc for the month if you need to make the shop up. I believe todays mail have a £5 off £40 at Lidl too.
We went on holiday for the first time as a family summer just gone. We booked flights via easyjet a year in advance to Iceland for £37 each in August! We booked car hire early in the new year and it was about half the airport price for shopping around and paying in advance and again booked accommodation direct. The five of us went with food and trips out for less than a five days in centreparcs would have cost us at the same time of year. We've booked next summers flights two weeks ago, we're going to Copenhagen this time for similar money now searching for accommodation and car hire deals.
Buy and sell via ebay. If you get a nice new to you top, sell something. If you can see what you've got it all gets worn and no point having dead stock in your wardrobe making you feel like you've nothing to wear because its jammed in so you can't see what you've got.
My DC are very good at sorting out their old toys to sell on ebay. They use the money towards the next thing on the wish list. By me shopping around they often manage to trade old for new without having to earn much to make up the difference. DS2 was desperate for a textra dog last Christmas but didn't remember till after we'd brought lego! We agreed to look out for one. Boots had them, i think it was boxing day for under £30. He sold some no longer played with play mobil to pay for it.