I thought I'd take up the Children's Society's Lockdown Lent Challenge of running 40 miles in 40 days. I'm planning to do a 10K run every week, plus a few other smaller runs to bring the total up to 64.4K (40 miles), with the final run being on Easter Sunday, 4 April. I've never been much of a runner before, but I definitely need more exercise, and it's for a great cause!