We tend to use Sainsbury's for the things we can't get in Lidl's. And Lidl's fruit and veg no cheaper than Sainsbury? That's not my experience, many fresh items beating Sainsbury by quite a large margin - this week cucumbers are 29p each, avocados 69p. Also fresh fish - 2 salmon steaks for £2.59 - usually £4 or £5 in Sainsbury. As for the unfamiliar brands, they are generally so much cheaper that it's worth trying and you could be pleasantly surprised by some of them - we have been.
And now they have an in store bakery - I bought a couple of Vanilla Crowns last week (you know, the Danish pastries with custard in the centre). They were 29p each. I popped into our local Co-op a few days later and they were selling exactly the same pastries, same size, for 89p
. In Sainsbury they come in packs of 2 for £1.20.
Another thing I like about Lidl's is that they don't throw hundreds of free carriers at you, but make a small charge (3p I think). BUT, unlike the ridiculously flimsy things that the main supermarkets use, that generally fall apart after one use and are not even usable as bin liners, Lidl's ones are big, strong bags, definitely re-usable (I'm not talking about their stronger Bag for Life types, these are just the standard ones).
I admit these stores are very different from the mainstream supermarkets, and need getting used to, but we are converts now!