Originally Posted by
craigthemif
In many parts of the world, this strategy is fine. I do it too. However, there are countries / hotels around the world where leaving without formally checking out is going to get you in trouble.
For what reason out of curiosity?
I almost always do this when I want a late checkout at a non IC property. If leaving card details any invoice is taken care of, the only painful part is having to contact the hotel to get invoice copies.