Completely forgot I had checked in a suitcase for my flight to Greece, landed and walked straight out of the airport onto the coach to my accommodation without even thinking about it. Didn’t realise I had left my suitcase at the airport until I stepped off the bus at the last stop and my heart drops. Also just so happens that I had gotten the last bus of the day from the airport! One very expensive taxi ride and 3 hours later I have my suitcase in hand.
tldr I had been flying with only a backpack so often recently I had completely forgotten I had checked in a bag, somehow…