Here's a scenario for you:
You've just arrived at the beach. It's a beautiful, sun-shining day, and the crystal blue water is basically beckoning to you with curling fingers.
You find an empty spot on the sand and settle in for a day of sunscreen, cold drinks, and occasional dips into the water. But as you reach into your beach bag to retrieve your towel and/or cover-up, you're shocked to find you've forgotten it.