According to Houkdeals, Sainsburys is running a freebie deal to promote its SmartShop app.

• New SmartShop app users only (Android or iOS)
• Need to download and use the app by 20 November
• Shop in-store, and pay with the app once at a self-checkout counter to earn the bonus

1,000 Nectar points is usually worth £5 (or £10 with the current Double Up promotion), which is a considerable gain given the participation sounds effortless!