Every week a Guardian Money reader submits a question, and it’s up to you to help him or her out – a selection of the best answers will appear in next Saturday’s paper.

This week’s question:

Fed up paying £20 for a blow dry, I’m tempted by a £300 Dyson Supersonic hairdryer. Every fibre of my being says it’s a crazy amount, but I regularly attend smart work events and it will soon pay for itself if it reduces hairdresser bills. Will it, or is this madness?

Do you have a problem readers could solve? Email your suggestions to money@theguardian.com or write to us at Money, The Guardian, Kings Place, 90 York Way, London N1 9GU