Sainsbury’s Double Up Promotion: How I got £64 worth of clothes for £2

Sainsbury’s is not my main supermarket, but I still have managed to get £10 of points on my nectar card (with nearly £5 spare) through a series of deals and manipulating offers to my benefit. Sainsbury’s have normally done two ‘Double Up’ promotions each year, where you have a week to double £10 worth of points (up to £40) …