Box Elder Bugs

Today I am battle a nasty foe.  We have a massive infestation of box elder bugs.  These evil things are swarming around my side door so bad that we have abandoned any idea of using it even though it is easier for us to get to our cars that way.  I have sprayed the whole house with a dawn and water mix but they seemed to have multiplied.  Every time I would spray they would launch themselves at me and I would imagine screaming in their non-existent language, "FOR THE HOARD!!!!".  I hate these things because now I feel like they are crawling all over me.  I'm going back to fight round 2 in a little bit after I clean my steps of their fallen brothers.  I will win this war I promise.  I have no idea why they even exist other than to annoy me in the fall.  Last year it was earwigs so it could be worse.