Greggs has one of the best sign-up freebies on the high street: download their Rewards app, create an account and your welcome gift – a free drink of your choice – is credited straight to your app wallet, ready to redeem at any Greggs store.

You can choose any regular hot or iced drink from the menu: lattes, cappuccinos, flat whites, iced coffees, teas and more. No minimum spend, no purchase required – just show the app at the till.

Once you are signed up, the app also gives you stamps towards more free items, plus a birthday treat every year.