Tesco had some jars of gherkins at 50p a few weeks back. Lidl is probably a better bet for dill-pickled ones and their large jars work out reasonably priced.. as do their capers.
I'm inherently cautious about money - nearest lidl is an hour away so i only do a run every 6-8 weeks or so and bulk buy targetted stuff - whole salami (one lasts me 10-14 days as my main and limited meat source) some bars of chocolate - not that I eat much sweet stuff so a bar lasts me over a week. Spread, a treat of gorgonzola - theirs is really good. Cheap packs of flavoured noodles for a lazy quick snack, some frozen chicken curries £1.19 for a lazy dinner. Their muesli with my added stewed fruit is another good buy and soem dried fruits and nuts. Veggies and fruit i grow silly amounts of and there's always eggs.
No TV licence and no mobile phone (no signal anyway). And then i go and splurge my savings on toyss i really want.. and can spend months working out the best deal.