
There are various cheap housing options available in Japan: hostels, guest houses, capsule hotels, homestay families, dorms, et cetera. Although I've never tried any of those, I did stay in a gaijin house for seven months. It was the perfect first home for me in Japan.
In September of 2007 I came to Osaka for my exchange program, and wanted to get an apartment of my own. Not a dorm room where I'd have a curfiew, or a host family that I'd have to call everytime I wouldn't be back for dinner, but an affordable private room with no babysitting bullcrap or other annoyances. Of course I had to sacrifice some things such as getting my laundry done by the host mom or getting two meals per day in the dorm cafeteria. But what I really wanted was a place that allowed me to be independent.