I thought this was an old wives tale until I found myself telling people the same thing over and over.
What are your worst lapses to date?
Mine was leaving my debit card in the machine at Sainsburys. They have kindly sent it back to the bank for me but it'll take 3-5 working days for the new card and longer for the pin number to arrive.
It made me feel like a right plonker until I realised that DH will have to do the food shopping! 