During the summer Trädgården is the place to be if your out clubbing. It has a great festival atmosphere. The chance of you getting seperated from your friends is immidiate but you will meet new ones. I have a love-hate relationship with this place, watch out for the massive que and the ill willing pointers.
The best bakery i Stockholm. My favorite is their saffron bun, the cardamom bun or their croissant twist with cinnamon. All these sticks to the baking paper because they have so much butter and caramel in them.
A 500-meter long (quarter mile) walking path with a magnificent view of Lake Mälaren, City Hall, and Riddarholmen. Bring your take-away coffee and walk the path at least once every season to notice the different scents and colours of Stockholm.
Lovely food with whatever the season offers in the restaurant but also got a connected bar and nightlife events. The yard is a great spot to spend summer evenings and it always has a friendly vibe.