It's being called the bed bug trap with the pet food bowl, but Wan-Tien Tsai's simple bed bug monitor trap is all the rage. It's a easy as getting gallon water thermos with the flip up dispenser, a pet food bowl wrapped in cheese cloth on the outside, and some dry ice. The idea is simple enough, but should be used with extreme safety in mind and caution. God forbid a child picks up a dry ice cube and freezes his hand off, but this trap is something that can be cheaply put together and used in multiple locations to see what kind of activity is going on in the home. Bedbugs are distressing enough to make people try anything, but if used cautiously, it could be a cheap and useful tool.