Michiganders: Who do YOU get rid of fish/may flies?

[Amanda]

Background: I live in New Baltimore, if you've heard of it: we have a fricken fishfly festivle every year. The whole city gets COVERED in this things.

Normally we just wait it out- it's only like 2-2 1/2 weeks. But now that I've moved closer to the water, they're covering my front porch.

Do anyone know a way to deter them, or a homemade spray that might deter them? (Our building turns the lights off during fishfly season, and we use the blinds over the window at night to prevent light.