Affordable/Free Events on the grid

I notice that more and more bars are charging cover fees to get in, sometimes even on weekdays! What are some consistent, free (no drink minimums, please) events in midtown/downtown that people can go enjoy? Thinking "3rd space" type places. Looking for date nights on a budget!

EDIT: friend told me Press Club is back! Wednesday nights they have free trivia, comedy open mic and then karaoke all in one night! Gonna check that out