Every week a Guardian Money reader submits a question, and it's up to you to help them out - a selection of the best answers will appear in Saturday's paper.
Sales growth is strong at Lidl, but is it the best discount store? Photograph: Graham Turner
This week's question:
I keep reading about how great the low-cost supermarkets are, and I am thinking about giving them a go. We buy loads of food, including healthy options: I'm not just after the very cheapest. Where do readers go and which products do they really like?
What are your thoughts?