Dead wasps can still be a nuisance as they can still sting! If the dead wasp is still intact, you should handle with care as rigor mortis takes place and a reflex reaction will result in the sting still being capable of stinging.
If dead wasps are found around your home or a single dead wasp daily, this may mean there is a nest in or close to your home. With the odd wasp making its way into the rooms of your home, becoming stuck and dieing. This may call for an investigation as you would not want to be sitting in front of the TV or sat down for dinner to find an angry wasp buzzing around your ears! A wasp may look and seam dead but it may only be stunned. So it is important to make sure they are dead before picking them up to remove them. Its also important to take care when removing them as they can sting while dead.