Mark Millar has revealed he keeps a beer in the fridge every day to help prevent writer’s block.He said that before he begins work he makes sure he has a drink chilling at home to look forward to when he finishes at 4pm.Millar, 51, who sold his comic book empire Millarworld to Netflix for almost £25million in 2017, said the ritual is part ofa new routine. It includes getting out of bed early before a workout and a 90-second cold shower.