Not a psychic but I have some suggestions.
Where did you use it last? What were you wearing when you used it? Check the pockets of those clothes. If you have washed those clothes, check the clothes hamper and the washer.
Usually works for me!
If that doesn't work, pray to St Anthony (no lie -- my husband always gets results with this) and ask him to put your debit card in your hand. The place to look will pop into your head within moments or minutes.
