One mum has revealed how she made £550 cashback over the past year - just by doing her regular shops. Emily Booth, 37, from Enderby in Leicestershire, started using the cashback app tuck. after looking for a way to make money back on purchases she was already making. tuck. is a cashback app that lets people get money back on everyday spending. It works by letting you buy gift cards for your favourite retailers, with a cashback rate applied. For example, you can currently buy a £50 voucher to