Ino's place is a backpacker's hostel I stayed for 4 nights when I was in Sapporo. It is connected to the city center of Sapporo by metro and the price is cheap. (2,900 yen/one night) Dormitories are not very cozy (a bit too crowded) but the kitchen, living room, restroom is very very clean and you have free access to everything in the guest house.
They have a great section of travel information in many different languages. You can see recommendations from former guests, on the shared note book.
Ino's place
dyii added
There is a basket next to the stairs where the former guests left their sweaters, jackets, pants, umbrellas, etc to make their luggage lighter before they left. The owner of Ino's cleans them so that you can bring them with you on days with unexpected rain or chilly weather. (You can leave yours as well!)