about a month ago, at night, i was struggling to prepare presentation for next day's event. i needed to stay focused. it turned out to be quite tricky though, since small flies were flying around my screen all evening. they just loved bright backlight and there was not much one can do. killing them all was not an option – they just kept coming.
after changing a focus to a new problem, solution became straight forward:
i just setup a fan to blow on my both screens, so that the artificial wind was to strong for small flies to fly. effect was instant – no more annoying black dots around my screen. as a free bonus i had a nice, cool breeze on my face. 1:0 for a mankind. ;)