This morning's blog on TripAdvisor.com lists the world's filthiest hotels, the ones where the bed bugs do bite.

Frequent travelers know that the first thing they should do when entering a hotel room, even one with a good reputation, is to pull down the bed spread. Why? Because unlike the sheets, which should be fresh for every new guest, the bed spreads are laundered far less frequently, if at all, thus are more susceptible to being "less than clean." But what if you think you've checked in to the Bates Motel? The best thing is to avoid booking there in the first place.

With all that in mind, check out Trip Advisors "2009's Dirtiest Hotels" to make sure that the hotel you select, especially when desperate, isn't topping their list. As in years past, New York's infamous Hotel Carter takes the top spot on the list.

Have any hotel horror stories of your own? Tell us about them by leaving a comment below.