I have a two-bedroom apartment in Prenzlauer Berg/Pankow. I would love to rent out my living room to people who are visiting Berlin and are looking for an inexpensive, cozy and clean place to stay for a few days. The couch comfortably sleeps two people. I have blankets, pillows and towels for you to use as well.
The kitchen is great and you may use it at any time as long as you clean up after yourself. There is a washing machine, which can be used during normal daytime hours. I have a hot water maker, a bread maker and pretty much everything else for this to be a fully equipped, functioning kitchen. The balcony is great during the summer. I have an electronic grill, which you may use as well.
I usually leave the house before 8 am and return sometime after 6 pm. I live in Prenzlauer Berg, close to the public transportation stop Schönhauser Allee. Public transportation is easily accessible after a short 10 minute walk.