Yeah, that poison Ivy trick really works! Just kidding. It was kinda funny though.
You all have to know more than me about it but I have heard that Diatomacious Earth kills bees if they get into it. I would be interested in hearing thoughts on that from people on this list.
You do know that if you periodically rub your legs, waist, etc. you can kill the chiggers before they do any damage, right? It's worth a try if you don't like wearing pesticides. ;-) Another thing to do is tuck your pants into your socks or some other such thing to create a barrier (although this is better with ticks).
I've tried the skin so soft and it works too, at least for some bugs like mosquitos. I'm not sure about chiggers. It's greasy though.