A very nice little second-hand bookstore, including a shelve with international books in French, English, and Spanish too. Always nice people to meet and a great selection of art and cook books, for affordable prices.
If you want something a little different from your beer, try Lager Lager.
"We are an independent bottle shop and taproom in Neukölln with a passion for all things beer. Choose from our 8 rotating taps and 250+ bottles, with new stock arriving each week. Drink in or takeaway a Growler bottle of your favourite beer using our counter-pressure bottle filler, which guarantees freshness."
A place where I spend some time almost everyday is the Marheineke Markthalle on Bergmannstraße in Kreuzberg. It's just around the corner from where I live and a great place to buy fresh food and products from local farmers or all kinds of delicatessen from different countries. Many market stalls also sell freshly prepared food and it's always busy at lunchtime. For saturday mornings try the original french croissants.
Kw is a great art institute situated at the backyard of a very eastern part of town, place for many other small galleries. Auguststrasse is worth the walk and Kw is worth the stop.