Alright, here’s the skinny. Pay online at gov.uk/dart-charge. Pay by phone at 0300 300 0120. Do it before midnight the next day.
Set an account if you do this regularly. The tunnel is a dark, wet, unavoidable part of London life. But paying for it? That part you can totally nail.
Now go forth. Drive through that wet, gloomy portal. You’ve got this. And maybe turn up the radio – it helps drown out the dripping.