Bala had saved ₹2,000 for headphones. He spotted a pair at 40% off, but the prompt, ‘Only 2 left!’ and ‘Add ₹500 more for FREE shipping!’ nudged him into adding a phone cover and a notebook. He ended up spending more than he had planned. During festive sales, around Dussehra and Diwali, such offers can push us to buy faster, spend more or buy things we don’t really need.