Calendars. Last year they were as much use as a chocolate lateral flow test, but now we're getting back into them.
Uber-talented illustrator Adam Dant has created this arboreal calendar of quirky London events, featuring Oak Apple Day (which celebrate Charles II shunning up a tree), the barmy Swearing on the Horns, Lammas Day at Borough Market (where whopping great loaves of bread are blessed), and the Tower of London's non-existent Washing of the Lions (it's on 1 April). Lordy, London is weird.
As you peruse Dant's magnificently cluttered handiwork, remember not to use it verbatim: certain dates do shift around.