OK less gross than house flies, but still these things have invaded. I think its because my roommate brought in fruit and put it on a plate out in the open - I stick my stuff straight in the fridge. She put it away but the invasion has begun and they are ANNOYING. I clean up but those little things I think can survive on the smallest crumb.
I just stick a fan near my face for now. I hear that a rue plant can deter them but I need to look for a place that sells those.

If you have any wine in the house, put a little in a deep glass near the invasion. The flies are drawn to the fruit smell but get too drunk to fly out of the glass

The wine trick works and you can get an electric fly swatter and have at it.

I've heard of the ACV (with a bit of sugar?) trick with tape underneath so less flies get out.

I don't keep anything out but I've seen a few in my kitchen! Ugh.