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: We’re squabbling over whether to buy a NutriBullet blender, costing £90. My partner reckons we’ll start drinking loads of healthy smoothies. I reckon it’s just a fad. Will it end up in the back of the cupboard next to the sandwich toaster? Did you regret buying one – or do you love it?

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