When in need of some inspiration The Design Museum is an obvious choice living in Copenhagen. What is not that well known to the visitors is that the Design Museum has a great poster collection not open to the general public. If you plan your visit and make an agreement with the Museum beforehand, you will be able to visit the collection archived in the attic above the Museums’ library (which is also a must-see, but expect to be ‘shushed’).
The Design Museum has since its founding in the 1890s collected posters, and the collection documents commercial, cultural, and political developments in poster history both in Denmark and around the world, from the boom in posters in the 1800s to today. And all of the stars of poster history are represented. The curator of the department will be able to find posters relevant to the subject you are interested in, and is very knowledgeable of both printing techniques and cultural history.
Between colony gardens in Amager lies one of my favourite local spots: Baghaven. Good food and cosiness is in the forefront. Various events with and without music gather people on the square at Diamantgangen 75. A very local experience. Great for families, children, young and old.
Just 25 min by train from downtown Copenhagen lies an old and beautiful forest and country area inhabited by wild (but friendly) deer. It's a vast, mysterious space for getting lost in and perfect for spacing out on mushrooms if you bring friends. Stay away on Sundays as it fills up with screaming children and zombie parents. Grab an ice cream on your way back at Bakken, the old David Lynch-ish fairground located at the outskirts of the forest.
Distortion Festival is a 5 days big party, rolling through one neighbourhood each day during the first week of june. In the daytime you'll find free street parties and at night the parties continue in the night clubs with international DJ line-ups.