As the coronavirus lockdown continues, many people are having to make some tricky decisions about their hair.Advice from professional hairdressers, including Nicky Clarke, who appeared on BBC Breakfast on Wednesday morning to answer viewers’ questions, is to “leave it alone”.Easy to say, but hard to do.And while some are choosing to cut it themselves - often with hilariously disastrous results that soon end up on social media - others are waiting it out and hoping they can visit a professional sooner rather than later.But one woman, fed up with the amount of grey on display, has praised a £1.99 root spray she picked up in Home Bargains that completely covered her fading hair in seconds.The savvy shopper was so impressed with the way the