Yesterday I visited the summer Nachtkonsum night flea market here in Munich. They keep it at the Feierwerk which is a culture area for youth. Specially in the summer I love the place. There's a great atmosphere, good food from a trailer kitchen and it has some weird appeal even if it's kind of rough. Maybe that's why. It has the DIY feeling in itself already.
The Feierwerk offers concerts every week and the area consist of a bigger hall and a couple of smaller club/concert venues in the same back yard. So maybe after shopping and beer drinking at the Nachtkonsum you can still also pop into a live gig. ...Or do as we did yesterday: crash into a Saturday night goth party.