I had booked us for a few days break on Lundy Island in one of their little cottages.
The shore office called me asking if we were far away. I said "yes, because we're coming tomorrow".
"No", she said, "you are booked to sail today".
I had written the correct day on the calendar in the kitchen, and put the correct day in my calendar on my phone, but for some reason, I had the wrong date in my head.
Fortunately, they were able to accommodate us from the following day - but in the spectacular mansion-type house instead of the little cottage we'd booked. We had the nine bedroomed house all to ourselves - not too shabby at all.