If you want to go see a Danish play or perfomance, but don't want to spend a lot of money on it, go to www.latesale.dk
Every day, starting from 4 o'clock in the afternoon, all sorts of different theathers, give you the tickets for 50% off the normal price. The only downside is that you have to see the play in the evening you buy the tickets for. The plays typically start around 7 or 8pm.