Tattle Coffee House - St Pauls

Open from 7am until 7pm every single day, this Moorgate sandwich shop and deli is a genuine rarity in the City of London, where much of the Square Mile goes quiet at the weekend. A 4.4 rating from more than 330 reviews suggests it's doing plenty right, and the welcome is an easygoing one — dogs are allowed, the space is step-free from entrance to toilet, and you can either grab something to take away or settle in for a proper sit-down.