B&M vegi curry, boil in the bag, IIRC 300gm for either 59p or 89p.
Also a new(ish) stall in the Aberdare indoor market focused on paint ball stuff but selling a lot of surplus jackets and trousers, all look to be in good nick and prices starting at about a fiver; if your local its worth popping in (no personal connection here).
I know in January/February the Sports Direct website does tonnes of things dirt cheap, last year I got a huge carrier bag full of all the things that need replacing for buttons, solid fuel blocks, rucksack covers, tent pegs, mosquito head net (destroyed using it to cool beers in a river) dry bags ect. I would keep away from their hexi type stoves though, they're just stamped unpainted metal that rust quickly, the B&M ones mentioned are much better. I personally would stay away from their walking shoes/boots, wore one pair out in two months.
Cotswold Outdoor have dropped the price on the one litre tins of Fuel4 bio-ethanol gel down to £4 online.
Note: It looks like they have changed suppliers for gel-fuel and are now stocking the Vango 1L pouches at £7 in store here. I mention this because they appear to be of quite sturdy construction with a small screw cap like a cross between the Sawyer pouches and a kids Fruit Shoot juice pack so once empty and after a dam good rinse out it could live on as a spare bladder for whatever liquids you may need to carry such as water, meths or a generous amount of medicinal alcohol.
I wouldn't call this a bargain by chance, but the Regatta outlet have their Cato softshell jackets in olive green selling for less than £25 currently. These are the ones with the fleecy pile-like lining and are toasty when its cool. Their standard softshells are less than £20 on there now too. While sizes last i guess.