Amazingly, I don't have a problem with them in my apartment this year, but there were a few years when they were absolutely terrible.
My solution was to use the vacuum cleaner. I remember one night going around the room and sucking up about fifty of them in about ten minutes. Once I started using the vacuum, they weren't much problem. I'd occasionally use Alby's method (especially if they were buzzing around my ear when I was trying to sleep), but with the vacuum instead of the spray can. I also use a fan if necessary, as gringoexpress suggests.
My solution was to use the vacuum cleaner. I remember one night going around the room and sucking up about fifty of them in about ten minutes. Once I started using the vacuum, they weren't much problem. I'd occasionally use Alby's method (especially if they were buzzing around my ear when I was trying to sleep), but with the vacuum instead of the spray can. I also use a fan if necessary, as gringoexpress suggests.