It’s beginning to look a lot like Christmas, or rather Christmas shopping and the retail frenzy of Black Friday and Cyber Monday. Originating in the States immediately after Thanksgiving (which is on the third Thursday of November), it’s become a regular shopping event across the world, with brands knocking down prices to thwart competitors, and sharp-elbowed customers grabbing those deals fast. Sleep and you weep: in the past, some High Street shops have found they should’ve drafted in more staff and, online, surging traffic has caused some unprepared e-retail sites to wobble and crash; unforgivable errors that many customers don’t forget. How ready is your business and how stable your holiday marketing strategy?